| Common Name |
Scientific Name |
Order |
Family |
Genus |
Species |
Author |
| | | | | | |
| A |
| abbreviated wireworm | Hypnoidus abbreviatus (Say) | COLEOPTERA | Elateridae | Hypnoidus | abbreviatus | (Say) |
| acacia psyllid | Acizzia uncatoides (Ferris & Klyver) | HEMIPTERA | Psyllidae | Acizzia | uncatoides | (Ferris & Klyver) |
| achemon sphinx | Eumorpha achemon (Drury) | LEPIDOPTERA | Sphingidae | Eumorpha | achemon | (Drury) |
| acuminate scale | Kilifia acuminata (Signoret) | HEMIPTERA | Coccidae | Kilifia | acuminata | (Signoret) |
| acute-angled fungus beetle | Cryptophagus acutangulus Gyllenhal | COLEOPTERA | Cryptophagidae | Cryptophagus | acutangulus | Gyllenhal |
| aerial yellowjacket | Dolichovespula arenaria (Fabricius) | HYMENOPTERA | Vespidae | Dolichovespula | arenaria | (Fabricius) |
| African mole cricket | Gryllotalpa africana Palisot de Beauvois | ORTHOPTERA | Gryllotalpidae | Gryllotalpa | africana | Palisot de Beauvois |
| ailanthus webworm | Atteva punctella (Cramer) | LEPIDOPTERA | Yponomeutidae | Atteva | punctella | (Cramer) |
| alder bark beetle | Alniphagus aspericollis (LeConte) | COLEOPTERA | Curculionidae | Alniphagus | aspericollis | (LeConte) |
| alder flea beetle | Macrohaltica ambiens (LeConte) | COLEOPTERA | Chrysomelidae | Macrohaltica | ambiens | (LeConte) |
| alder spittlebug | Clastoptera obtusa (Say) | HEMIPTERA | Cercopidae | Clastoptera | obtusa | (Say) |
| alfalfa blotch leafminer | Agromyza frontella (Rondani) | DIPTERA | Agromyzidae | Agromyza | frontella | (Rondani) |
| alfalfa caterpillar | Colias eurytheme Boisduval | LEPIDOPTERA | Pieridae | Colias | eurytheme | Boisduval |
| alfalfa gall midge | Asphondylia websteri Felt | DIPTERA | Cecidomyiidae | Asphondylia | websteri | Felt |
| alfalfa leafcutting bee | Megachile rotundata (Fabricius) | HYMENOPTERA | Megachilidae | Megachile | rotundata | (Fabricius) |
| alfalfa leaftier | Dichomeris acuminata (Staudinger) | LEPIDOPTERA | Gelechiidae | Dichomeris | acuminata | (Staudinger) |
| alfalfa looper | Autographa californica (Speyer) | LEPIDOPTERA | Noctuidae | Autographa | californica | (Speyer) |
| alfalfa plant bug | Adelphocoris lineolatus (Goeze) | HEMIPTERA | Miridae | Adelphocoris | lineolatus | (Goeze) |
| alfalfa seed chalcid | Bruchophagus roddi (Gussakovsky) | HYMENOPTERA | Eurytomidae | Bruchophagus | roddi | (Gussakovsky) |
| alfalfa snout beetle | Otiorhynchus ligustici (Linnaeus) | COLEOPTERA | Curculionidae | Otiorhynchus | ligustici | (Linnaeus) |
| alfalfa webworm | Loxostege cereralis (Zeller) | LEPIDOPTERA | Crambidae | Loxostege | cereralis | (Zeller) |
| alfalfa weevil | Hypera postica (Gyllenhal) | COLEOPTERA | Curculionidae | Hypera | postica | (Gyllenhal) |
| alkali bee | Nomia melanderi Cockerell | HYMENOPTERA | Halictidae | Nomia | melanderi | Cockerell |
| Allegheny mound ant | Formica exsectoides Forel | HYMENOPTERA | Formicidae | Formica | exsectoides | Forel |
| almond moth | Cadra cautella (Walker) | LEPIDOPTERA | Pyralidae | Cadra | cautella | (Walker) |
| aloe mite | Eriophyes aloinis Keifer | ACARI | Eriophyidae | Eriophyes | aloinis | Keifer |
| American aspen beetle | Gonioctena americana (Schaeffer) | COLEOPTERA | Chrysomelidae | Gonioctena | americana | (Schaeffer) |
| American black flour beetle | Tribolium audax Halstead | COLEOPTERA | Tenebrionidae | Tribolium | audax | Halstead |
| American bumble bee | Bombus pensylvanicus (DeGeer) | Hymenoptera | Apidae | Bombus | pensylvanicus | (DeGeer) |
| American cockroach | Periplaneta americana (Linnaeus) | BLATTODEA | Blattidae | Periplaneta | americana | (Linnaeus) |
| American dagger moth | Acronicta americana (Harris) | LEPIDOPTERA | Noctuidae | Acronicta | americana | (Harris) |
| American dog tick | Dermacentor variabilis (Say) | ACARI | Ixodidae | Dermacentor | variabilis | (Say) |
| American grasshopper | Schistocerca americana (Drury) | ORTHOPTERA | Acrididae | Schistocerca | americana | (Drury) |
| American hornet moth | Sesia tibialis (Harris) | LEPIDOPTERA | Sesiidae | Sesia | tibialis | (Harris) |
| American house dust mite | Dermatophagoides farinae Hughes | ACARI | Epidermoptidae | Dermatophagoides | farinae | Hughes |
| American palm cixiid | Myndus crudus Van Duzee | HEMIPTERA | Cixiidae | Myndus | crudus | Van Duzee |
| American plum borer | Euzophera semifuneralis (Walker) | LEPIDOPTERA | Pyralidae | Euzophera | semifuneralis | (Walker) |
| American spider beetle | Mezium americanum (Laporte) | COLEOPTERA | Ptinidae | Mezium | americanum | (Laporte) |
| Angora goat biting louse | Bovicola crassipes (Rudow) | MALLOPHAGA | Trichodectidae | Bovicola | crassipes | (Rudow) |
| Angoumois grain moth | Sitotroga cerealella (Olivier) | LEPIDOPTERA | Gelechiidae | Sitotroga | cerealella | (Olivier) |
| angularwinged katydid | Microcentrum retinerve (Burmeister) | ORTHOPTERA | Tettigoniidae | Microcentrum | retinerve | (Burmeister) |
| angulate leafhopper | Acinopterus angulatus Lawson | HEMIPTERA | Cicadellidae | Acinopterus | angulatus | Lawson |
| apple aphid | Aphis pomi De Geer | HEMIPTERA | Aphididae | Aphis | pomi | De Geer |
| apple bark borer | Synanthedon pyri (Harris) | LEPIDOPTERA | Sesiidae | Synanthedon | pyri | (Harris) |
| apple barkminer | Marmara elotella (Busck) | LEPIDOPTERA | Gracillariidae | Marmara | elotella | (Busck) |
| apple blotch leafminer | Phyllonorycter crataegella (Clemens) | LEPIDOPTERA | Gracillariidae | Phyllonorycter | crataegella | (Clemens) |
| apple curculio | Anthonomus quadrigibbus Say | COLEOPTERA | Curculionidae | Anthonomus | quadrigibbus | Say |
| apple curculio | Anthonomus quadrigibbus Say | COLEOPTERA | Curculionidae | Anthonomus | quadrigibbus | Say |
| apple flea weevil | Rhynchaenus pallicornis (Say) | COLEOPTERA | Curculionidae | Rhynchaenus | pallicornis | (Say) |
| apple fruit moth | Argyresthia conjugella Zeller | LEPIDOPTERA | Argyresthiidae | Argyresthia | conjugella | Zeller |
| apple fruitminer | Marmara pomonella Busck | LEPIDOPTERA | Gracillariidae | Marmara | pomonella | Busck |
| apple grain aphid | Rhopalosiphum fitchii (Sanderson) | HEMIPTERA | Aphididae | Rhopalosiphum | fitchii | (Sanderson) |
| apple leafhopper | Empoasca maligna (Walsh) | HEMIPTERA | Cicadellidae | Empoasca | maligna | (Walsh) |
| apple maggot | Rhagoletis pomonella (Walsh) | DIPTERA | Tephritidae | Rhagoletis | pomonella | (Walsh) |
| apple mealybug | Phenacoccus aceris (Signoret) | HEMIPTERA | Pseudococcidae | Phenacoccus | aceris | (Signoret) |
| apple red bug | Lygidea mendax Reuter | HEMIPTERA | Miridae | Lygidea | mendax | Reuter |
| apple rust mite | Aculus schlechtendali (Nalepa) | ACARI | Eriophyidae | Aculus | schlechtendali | (Nalepa) |
| apple seed chalcid | Torymus varians (Walker) | HYMENOPTERA | Torymidae | Torymus | varians | (Walker) |
| apple sucker | Cacopsylla mali (Schmidberger) | HEMIPTERA | Psyllidae | Cacopsylla | mali | (Schmidberger) |
| apple twig beetle | Hypothenemus obscurus (Fabricius) | COLEOPTERA | Curculionidae | Hypothenemus | obscurus | (Fabricius) |
| apple twig borer | Amphicerus bicaudatus (Say) | COLEOPTERA | Bostrichidae | Amphicerus | bicaudatus | (Say) |
| apple-and-thorn skeletonizer | Choreutis pariana (Clerck) | LEPIDOPTERA | Choreutidae | Choreutis | pariana | (Clerck) |
| appleleaf skeletonizer | Psorosina hammondi (Riley) | LEPIDOPTERA | Pyralidae | Psorosina | hammondi | (Riley) |
| appleleaf trumpet miner | Tischeria malifoliella Clemens | LEPIDOPTERA | Tischeriidae | Tischeria | malifoliella | Clemens |
| araucaria aphid | Neophyllaphis araucariae Takahashi | HEMIPTERA | Aphididae | Neophyllaphis | araucariae | Takahashi |
| arborvitae leafminer | Argyresthia thuiella (Packard) | LEPIDOPTERA | Argyresthiidae | Argyresthia | thuiella | (Packard) |
| arborvitae weevil | Phyllobius intrusus Kono | COLEOPTERA | Curculionidae | Phyllobius | intrusus | Kono |
| Argentine ant | Linepithema humile (Mayr) | HYMENOPTERA | Formicidae | Linepithema | humile | (Mayr) |
| argus tortoise beetle | Chelymorpha cassidea (Fabricius) | COLEOPTERA | Chrysomelidae | Chelymorpha | cassidea | (Fabricius) |
| Arizona fivespined ips | Ips lecontei Swaine | COLEOPTERA | Curculionidae, Scolytinae | Ips | lecontei | Swaine |
| army cutworm | Euxoa auxiliaris (Grote) | LEPIDOPTERA | Noctuidae | Euxoa | auxiliaris | (Grote) |
| armyworm | Pseudaletia unipuncta (Haworth) | LEPIDOPTERA | Noctuidae | Pseudaletia | unipuncta | (Haworth) |
| arroyo willow stem-galling sawfly | Euura lasiolepis Smith | HYMENOPTERA | Tenthredinidae | Euura | lasiolepis | Smith |
| artichoke plume moth | Platyptilia carduidactyla (Riley) | LEPIDOPTERA | Pterophoridae | Platyptilia | carduidactyla | (Riley) |
| ash borer14 | Podosesia syringae (Harris) | LEPIDOPTERA | Sesiidae | Podosesia | syringae | (Harris) |
| ash plant bug | Tropidosteptes amoenus Reuter | HEMIPTERA | Miridae | Tropidosteptes | amoenus | Reuter |
| ashgray blister beetle | Epicauta fabricii (LeConte) | COLEOPTERA | Meloidae | Epicauta | fabricii | (LeConte) |
| Ashton cuckoo bumble bee | Bombus ashtoni (Cresson) | Hymenoptera | Apidae | Bombus | ashtoni | (Cresson) |
| Asian chestnut gall wasp | Dryocosmus kuriphilus (Yasumatsu) | Hymenoptera | Cynipidae | Dryocosmus | kuriphilus | (Yasumatsu) |
| Asian cockroach | Blattella asahinai Mizukubo | BLATTODEA | Blattellidae | Blattella | asahinai | Mizukubo |
| Asian longhorned beetle | Anoplophora glabripennis (Motschulsky) | COLEOPTERA | Cerambycidae | Anoplophora | glabripennis | (Motschulsky) |
| Asian tiger mosquito | Aedes albopictus (Skuse) | DIPTERA | Culicidae | Aedes | albopictus | (Skuse) |
| Asian tiger mosquito | Aedes albopictus (Skuse) | DIPTERA | Culicidae | Aedes | albopictus | (Skuse) |
| Asiatic garden beetle | Maladera castanea (Arrow) | COLEOPTERA | Scarabaeidae | Maladera | castanea | (Arrow) |
| Asiatic oak weevil | Cyrtepistomus castaneus (Roelofs) | COLEOPTERA | Curculionidae | Cyrtepistomus | castaneus | (Roelofs) |
| Asiatic rice borer | Chilo suppressalis (Walker) | LEPIDOPTERA | Crambidae | Chilo | suppressalis | (Walker) |
| Asiatic rose scale | Aulacaspis rosarum Borchsenius | HEMIPTERA | Diaspididae | Aulacaspis | rosarum | Borchsenius |
| asparagus aphid | Brachycorynella asparagi (Mordvilko) | HEMIPTERA | Aphididae | Brachycorynella | asparagi | (Mordvilko) |
| asparagus beetle | Crioceris asparagi (Linnaeus) | COLEOPTERA | Chrysomelidae | Crioceris | asparagi | (Linnaeus) |
| asparagus miner | Ophiomyia simplex (Loew) | DIPTERA | Agromyzidae | Ophiomyia | simplex | (Loew) |
| asparagus spider mite | Schizotetranychus asparagi (Oudemans) | ACARI | Tetranychidae | Schizotetranychus | asparagi | (Oudemans) |
| aspen blotchminer | Phyllonorycter tremuloidiella (Braun) | LEPIDOPTERA | Gracillariidae | Phyllonorycter | tremuloidiella | (Braun) |
| aspen leaf beetle | Chrysomela crotchi Brown | COLEOPTERA | Chrysomelidae | Chrysomela | crotchi | Brown |
| aster leafhopper | Macrosteles quadrilineatus Forbes | HEMIPTERA | Cicadellidae | Macrosteles | quadrilineatus | Forbes |
| aster leafminer | Calycomyza humeralis (Roser) | DIPTERA | Agromyzidae | Calycomyza | humeralis | (Roser) |
| Australian cockroach | Periplaneta australasiae (Fabricius) | BLATTODEA | Blattidae | Periplaneta | australasiae | (Fabricius) |
| Australian fern weevil | Syagrius fulvitarsis Pascoe | COLEOPTERA | Curculionidae | Syagrius | fulvitarsis | Pascoe |
| Australian mantid | Tenodera australasiae (Leach) | MANTODEA | Mantidae | Tenodera | australasiae | (Leach) |
| Australian pine borer | Chrysobothris tranquebarica (Gmelin) | COLEOPTERA | Buprestidae | Chrysobothris | tranquebarica | (Gmelin) |
| Australian rat flea | Xenopsylla vexabilis (Jordan) | SIPHONAPTERA | Pulicidae | Xenopsylla | vexabilis | (Jordan) |
| Australian spider beetle | Ptinus ocellus Brown | COLEOPTERA | Ptinidae | Ptinus | ocellus | Brown |
| avocado brown mite | Oligonychus punicae (Hirst) | ACARI | Tetranychidae | Oligonychus | punicae | (Hirst) |
| avocado red mite | Oligonychus yothersi (McGregor) | ACARI | Tetranychidae | Oligonychus | yothersi | (McGregor) |
| avocado whitefly | Trialeurodes floridensis (Quaintance) | HEMIPTERA | Aleyrodidae | Trialeurodes | floridensis | (Quaintance) |
| azalea bark scale | Acanthococcus azaleae (Comstock) | HEMIPTERA | Eriococcidae | Acanthococcus | azaleae | (Comstock) |
| azalea caterpillar | Datana major Grote & Robinson | LEPIDOPTERA | Notodontidae | Datana | major | Grote & Robinson |
| azalea lace bug | Stephanitis pyrioides (Scott) | HEMIPTERA | Tingidae | Stephanitis | pyrioides | (Scott) |
| azalea leafminer | Caloptilia azaleella (Brants) | LEPIDOPTERA | Gracillariidae | Caloptilia | azaleella | (Brants) |
| azalea plant bug | Rhinocapsus vanduzeei Uhler | HEMIPTERA | Miridae | Rhinocapsus | vanduzeei | Uhler |
| azalea white mite | Eotetranychus clitus Pritchard & Baker | ACARI | Tetranychidae | Eotetranychus | clitus | Pritchard & Baker |
| azalea whitefly | Pealius azaleae (Baker & Moles) | HEMIPTERA | Aleyrodidae | Pealius | azaleae | (Baker & Moles) |
| B |
| bagworm | Thyridopteryx ephemeraeformis (Haworth) | LEPIDOPTERA | Psychidae | Thyridopteryx | ephemeraeformis | (Haworth) |
| Bahaman swallowtail | Papilio andraemon bonhotei Sharpe | LEPIDOPTERA | Papilionidae | Papilio | andraemon bonhotei | Sharpe |
| baldcypress coneworm | Dioryctria pygmaeella Ragonot | LEPIDOPTERA | Pyralidae | Dioryctria | pygmaeella | Ragonot |
| baldfaced hornet | Dolichovespula maculata (Linnaeus) | HYMENOPTERA | Vespidae | Dolichovespula | maculata | (Linnaeus) |
| balsam fir sawfly | Neodiprion abietis (Harris) | HYMENOPTERA | Diprionidae | Neodiprion | abietis | (Harris) |
| balsam fir sawyer | Monochamus marmorator Kirby | COLEOPTERA | Cerambycidae | Monochamus | marmorator | Kirby |
| balsam gall midge | Paradiplosis tumifex Gagné | DIPTERA | Cecidomyiidae | Paradiplosis | tumifex | Gagné |
| balsam shootboring sawfly | Pleroneura brunneicornis Rohwer | HYMENOPTERA | Xyelidae | Pleroneura | brunneicornis | Rohwer |
| balsam twig aphid | Mindarus abietinus Koch | HEMIPTERA | Aphididae | Mindarus | abietinus | Koch |
| balsam woolly adelgid | Adelges piceae (Ratzeburg) | HEMIPTERA | Adelgidae | Adelges | piceae | (Ratzeburg) |
| bamboo borer | Chlorophorus annularis (Fabricius) | COLEOPTERA | Cerambycidae | Chlorophorus | annularis | (Fabricius) |
| bamboo mealybug | Chaetococcus bambusae (Maskell) | HEMIPTERA | Pseudococcidae | Chaetococcus | bambusae | (Maskell) |
| bamboo powderpost beetle | Dinoderus minutus (Fabricius) | COLEOPTERA | Bostrichidae | Dinoderus | minutus | (Fabricius) |
| bamboo spider mite | Schizotetranychus celarius (Banks) | ACARI | Tetranychidae | Schizotetranychus | celarius | (Banks) |
| banana aphid | Pentalonia nigronervosa Coquerel | HEMIPTERA | Aphididae | Pentalonia | nigronervosa | Coquerel |
| banana root borer | Cosmopolites sordidus (Germar) | COLEOPTERA | Curculionidae | Cosmopolites | sordidus | (Germar) |
| banana skipper | Erionota thrax (Linnaeus) | LEPIDOPTERA | Hesperiidae | Erionota | thrax | (Linnaeus) |
| banded alder borer | Rosalia funebris Motschulsky | COLEOPTERA | Cerambycidae | Rosalia | funebris | Motschulsky |
| banded ash clearwing | Podosesia aureocincta Purrington & Nielsen | LEPIDOPTERA | Sesiidae | Podosesia | aureocincta | Purrington & Nielsen |
| banded cucumber beetle | Diabrotica balteata LeConte | COLEOPTERA | Chrysomelidae | Diabrotica | balteata | LeConte |
| banded elm bark beetle | Scolytus schevyrewi Semenov | COLEOPTERA | Curculionidae | Scolytus | schevyrewi | Semenov |
| banded greenhouse thrips | Hercinothrips femoralis (O.M. Reuter) | THYSANOPTERA | Thripidae | Hercinothrips | femoralis | (O.M. Reuter) |
| banded hickory borer | Knulliana cincta (Drury) | COLEOPTERA | Cerambycidae | Knulliana | cincta | (Drury) |
| banded sunflower moth | Cochylis hospes Walsingham | LEPIDOPTERA | Tortricidae | Cochylis | hospes | Walsingham |
| banded wood snail | Cepaea nemoralis (Linnaeus) | STYLOMMATOPHORA | Helicidae | Cepaea | nemoralis | (Linnaeus) |
| banded woollybear | Pyrrharctia isabella (J.E. Smith) | LEPIDOPTERA | Arctiidae | Pyrrharctia | isabella | (J.E. Smith) |
| bandedwinged whitefly | Trialeurodes abutiloneus (Haldeman) | HEMIPTERA | Aleyrodidae | Trialeurodes | abutiloneus | (Haldeman) |
| Banks grass mite | Oligonychus pratensis (Banks) | ACARI | Tetranychidae | Oligonychus | pratensis | (Banks) |
| banyan aphid | Thoracaphis fici (Takahashi) | HEMIPTERA | Aphididae | Thoracaphis | fici | (Takahashi) |
| Barber brown lacewing | Sympherobius barberi (Banks) | NEUROPTERA | Hemerobiidae | Sympherobius | barberi | (Banks) |
| barberpole caterpillar | Mimoschinia rufofascialis (Stephens) | LEPIDOPTERA | Crambidae | Mimoschinia | rufofascialis | (Stephens) |
| barley jointworm | Tetramesa hordei (Harris) | HYMENOPTERA | Eurytomidae | Tetramesa | hordei | (Harris) |
| barnacle scale | Ceroplastes cirripediformis Comstock | HEMIPTERA | Coccidae | Ceroplastes | cirripediformis | Comstock |
| basswood lace bug | Gargaphia tiliae (Walsh) | HEMIPTERA | Tingidae | Gargaphia | tiliae | (Walsh) |
| basswood leafminer | Baliosus nervosus (Panzer) | COLEOPTERA | Chrysomelidae | Baliosus | nervosus | (Panzer) |
| basswood leafroller | Pantographa limata (Grote & Robinson) | LEPIDOPTERA | Crambidae | Pantographa | limata | (Grote & Robinson) |
| basswood thrips | Sericothrips tiliae Hood | THYSANOPTERA | Thripidae | Sericothrips | tiliae | Hood |
| basswood thrips | Neohydatothrips tiliae Hood | THYSANOPTERA | Thripidae | Neohydatothrips | tiliae | Hood |
| beachgrass scale | Acanthococcus carolinae (Williams) | HEMIPTERA | Eriococcidae | Acanthococcus | carolinae | (Williams) |
| bean aphid | Aphis fabae Scopoli | HEMIPTERA | Aphididae | Aphis | fabae | Scopoli |
| bean butterfly | Lampides boeticus (Linnaeus) | LEPIDOPTERA | Lycaenidae | Lampides | boeticus | (Linnaeus) |
| bean capsid | Pycnoderes quadrimaculatus Guérin-Méneville | HEMIPTERA | Miridae | Pycnoderes | quadrimaculatus | Guérin-Méneville |
| bean fly | Ophiomyia phaseoli (Tryon) | DIPTERA | Agromyzidae | Ophiomyia | phaseoli | (Tryon) |
| bean leaf beetle | Cerotoma trifurcata (Förster) | COLEOPTERA | Chrysomelidae | Cerotoma | trifurcata | (Förster) |
| bean leafroller | Urbanus proteus (Linnaeus) | LEPIDOPTERA | Hesperiidae | Urbanus | proteus | (Linnaeus) |
| bean leafskeletonizer | Autoplusia egena (Guenée) | LEPIDOPTERA | Noctuidae | Autoplusia | egena | (Guenée) |
| bean pod borer | Maruca testulalis (Geyer) | LEPIDOPTERA | Crambidae | Maruca | testulalis | (Geyer) |
| bean seed maggot | Delia florilega (Zetterstedt) | DIPTERA | Anthomyiidae | Delia | florilega | (Zetterstedt) |
| bean stalk weevil | Sternechus paludatus (Casey) | COLEOPTERA | Curculionidae | Sternechus | paludatus | (Casey) |
| bean thrips | Caliothrips fasciatus (Pergande) | THYSANOPTERA | Thripidae | Caliothrips | fasciatus | (Pergande) |
| bean weevil | Acanthoscelides obtectus (Say) | COLEOPTERA | Bruchidae | Acanthoscelides | obtectus | (Say) |
| Beardsley leafhopper | Balclutha saltuella (Kirschbaum) | HEMIPTERA | Cicadellidae | Balclutha | saltuella | (Kirschbaum) |
| bed bug | Cimex lectularius Linnaeus | HEMIPTERA | Cimicidae | Cimex | lectularius | Linnaeus |
| beech blight aphid | Fagiphagus imbricator (Fitch) | HEMIPTERA | Aphididae | Fagiphagus | imbricator | (Fitch) |
| beech scale | Cryptococcus fagisuga Lindinger | HEMIPTERA | Eriococcidae | Cryptococcus | fagisuga | Lindinger |
| beet armyworm | Spodoptera exigua (Hübner) | LEPIDOPTERA | Noctuidae | Spodoptera | exigua | (Hübner) |
| beet leaf beetle | Erynephala puncticollis (Say) | COLEOPTERA | Chrysomelidae | Erynephala | puncticollis | (Say) |
| beet leafhopper | Circulifer tenellus (Baker) | HEMIPTERA | Cicadellidae | Circulifer | tenellus | (Baker) |
| beet leafminer | Pegomya betae Curtis | DIPTERA | Anthomyiidae | Pegomya | betae | Curtis |
| beet webworm | Loxostege sticticalis (Linnaeus) | LEPIDOPTERA | Crambidae | Loxostege | sticticalis | (Linnaeus) |
| bella moth | Utetheisa bella (Linnaeus) | LEPIDOPTERA | Arctiidae | Utetheisa | bella | (Linnaeus) |
| Bermudagrass mite | Eriophyes cynodoniensis Sayed | ACARI | Eriophyidae | Eriophyes | cynodoniensis | Sayed |
| bertha armyworm | Mamestra configurata Walker | LEPIDOPTERA | Noctuidae | Mamestra | configurata | Walker |
| bidens borer | Epiblema otiosana (Clemens) | LEPIDOPTERA | Tortricidae | Epiblema | otiosana | (Clemens) |
| bigheaded ant | Pheidole megacephala (Fabricius) | HYMENOPTERA | Formicidae | Pheidole | megacephala | (Fabricius) |
| bigheaded grasshopper | Aulocara elliotti (Thomas) | ORTHOPTERA | Acrididae | Aulocara | elliotti | (Thomas) |
| birch bark beetle | Dryocoetes betulae Hopkins | COLEOPTERA | Curculionidae | Dryocoetes | betulae | Hopkins |
| birch casebearer3 | Coleophora serratella (Linnaeus) | LEPIDOPTERA | Coleophoridae | Coleophora | serratella | (Linnaeus) |
| birch leafminer | Fenusa pusilla (Lepeletier) | HYMENOPTERA | Tenthredinidae | Fenusa | pusilla | (Lepeletier) |
| birch sawfly | Arge pectoralis (Leach) | HYMENOPTERA | Argidae | Arge | pectoralis | (Leach) |
| birch skeletonizer | Bucculatrix canadensisella Chambers | LEPIDOPTERA | Bucculatricidae | Bucculatrix | canadensisella | Chambers |
| birch tubemaker | Acrobasis betulella Hulst | LEPIDOPTERA | Pyralidae | Acrobasis | betulella | Hulst |
| bird cherry-oat aphid | Rhopalosiphum padi (Linnaeus) | HEMIPTERA | Aphididae | Rhopalosiphum | padi | (Linnaeus) |
| bird tick | Haemaphysalis chordeilis (Packard) | ACARI | Ixodidae | Haemaphysalis | chordeilis | (Packard) |
| black and gold bumble bee | Bombus auricomus (Robertson) | Hymenoptera | Apidae | Bombus | auricomus | (Robertson) |
| black army cutworm | Actebia fennica (Tauscher) | LEPIDOPTERA | Noctuidae | Actebia | fennica | (Tauscher) |
| black blister beetle | Epicauta pennsylvanica (De Geer) | COLEOPTERA | Meloidae | Epicauta | pennsylvanica | (De Geer) |
| black blow fly | Phormia regina (Meigen) | DIPTERA | Calliphoridae | Phormia | regina | (Meigen) |
| black bug | Corimelaena pulicaria (Germar) | HEMIPTERA | Thyreocoridae | Corimelaena | pulicaria | (Germar) |
| black carpenter ant | Camponotus pennsylvanicus (De Geer) | HYMENOPTERA | Formicidae | Camponotus | pennsylvanicus | (De Geer) |
| black carpet beetle | Attagenus unicolor (Brahm) | COLEOPTERA | Dermestidae | Attagenus | unicolor | (Brahm) |
| black cherry aphid | Myzus cerasi (Fabricius) | HEMIPTERA | Aphididae | Myzus | cerasi | (Fabricius) |
| black cherry fruit fly | Rhagoletis fausta (Osten Sacken) | DIPTERA | Tephritidae | Rhagoletis | fausta | (Osten Sacken) |
| black citrus aphid | Toxoptera aurantii (Boyer de Fonscolombe) | HEMIPTERA | Aphididae | Toxoptera | aurantii | (Boyer de Fonscolombe) |
| black cockroach wasp | Dolichurus stantoni (Ashmead) | HYMENOPTERA | Sphecidae | Dolichurus | stantoni | (Ashmead) |
| black cutworm | Agrotis ipsilon (Hufnagel) | LEPIDOPTERA | Noctuidae | Agrotis | ipsilon | (Hufnagel) |
| black dung beetle | Copris incertus prociduus (Say) | COLEOPTERA | Scarabaeidae | Copris | incertus prociduus | (Say) |
| black earwig | Chelisoches morio (Fabricius) | DERMAPTERA | Chelisochidae | Chelisoches | morio | (Fabricius) |
| black elm bark weevil | Magdalis barbita (Say) | COLEOPTERA | Curculionidae | Magdalis | barbita | (Say) |
| black flower thrips | Haplothrips gowdeyi (Franklin) | THYSANOPTERA | Phlaeothripidae | Haplothrips | gowdeyi | (Franklin) |
| black fungus beetle | Alphitobius laevigatus (Fabricius) | COLEOPTERA | Tenebrionidae | Alphitobius | laevigatus | (Fabricius) |
| black grain stem sawfly | Trachelus tabidus (Fabricius) | HYMENOPTERA | Cephidae | Trachelus | tabidus | (Fabricius) |
| black horse fly | Tabanus atratus Fabricius | DIPTERA | Tabanidae | Tabanus | atratus | Fabricius |
| black hunter thrips | Leptothrips mali (Fitch) | THYSANOPTERA | Phlaeothripidae | Leptothrips | mali | (Fitch) |
| black imported fire ant | Solenopsis richteri Forel | HYMENOPTERA | Formicidae | Solenopsis | richteri | Forel |
| black lady beetle | Rhyzobius ventralis (Erichson) | COLEOPTERA | Coccinellidae | Rhyzobius | ventralis | (Erichson) |
| black larder beetle | Dermestes ater De Geer | COLEOPTERA | Dermestidae | Dermestes | ater | De Geer |
| black peach aphid | Brachycaudus persicae (Passerini) | HEMIPTERA | Aphididae | Brachycaudus | persicae | (Passerini) |
| black pecan aphid | Melanocallis caryaefoliae (Davis) | HEMIPTERA | Aphididae | Melanocallis | caryaefoliae | (Davis) |
| black pineleaf scale | Nuculaspis californica (Coleman) | HEMIPTERA | Diaspididae | Nuculaspis | californica | (Coleman) |
| black potter wasp | Delta pyriforme philippinense (Bequaert) | HYMENOPTERA | Vespidae | Delta | pyriforme philippinense | (Bequaert) |
| black scale | Saissetia oleae (Olivier) | HEMIPTERA | Coccidae | Saissetia | oleae | (Olivier) |
| black soldier fly | Hermetia illucens (Linnaeus) | DIPTERA | Stratiomyidae | Hermetia | illucens | (Linnaeus) |
| black stink bug | Coptosoma xanthogramma (White) | HEMIPTERA | Plataspidae | Coptosoma | xanthogramma | (White) |
| black sunflower stem weevil | Fallapion occidentale Fall | COLEOPTERA | Curculionidae | Fallapion | occidentale | Fall |
| black sunflower stem weevil | Apion occidentale Fall | COLEOPTERA | Curculionidae | Apion | occidentale | Fall |
| black swallowtail9 | Papilio polyxenes Stoll | LEPIDOPTERA | Papilionidae | Papilio | polyxenes | Stoll |
| black thread scale | Ischnaspis longirostris (Signoret) | HEMIPTERA | Diaspididae | Ischnaspis | longirostris | (Signoret) |
| black turfgrass ataenius | Ataenius spretulus (Haldeman) | COLEOPTERA | Scarabaeidae | Ataenius | spretulus | (Haldeman) |
| black turpentine beetle | Dendroctonus terebrans (Olivier) | COLEOPTERA | Curculionidae | Dendroctonus | terebrans | (Olivier) |
| black twig borer | Xylosandrus compactus (Eichhoff) | COLEOPTERA | Curculionidae | Xylosandrus | compactus | (Eichhoff) |
| black vine weevil | Otiorhynchus sulcatus (Fabricius) | COLEOPTERA | Curculionidae | Otiorhynchus | sulcatus | (Fabricius) |
| black walnut curculio | Conotrachelus retentus (Say) | COLEOPTERA | Curculionidae | Conotrachelus | retentus | (Say) |
| black widow spider | Latrodectus mactans (Fabricius) | ARANEAE | Theridiidae | Latrodectus | mactans | (Fabricius) |
| black witch | Ascalapha odorata (Linnaeus) | LEPIDOPTERA | Noctuidae | Ascalapha | odorata | (Linnaeus) |
| blackbellied clerid | Enoclerus lecontei (Wolcott) | COLEOPTERA | Cleridae | Enoclerus | lecontei | (Wolcott) |
| blackberry skeletonizer | Schreckensteinia festaliella (Hübner) | LEPIDOPTERA | Heliodinidae | Schreckensteinia | festaliella | (Hübner) |
| Blackburn butterfly | Vaga blackburni (Tuely) | LEPIDOPTERA | Lycaenidae | Vaga | blackburni | (Tuely) |
| Blackburn damsel bug | Nabis blackburni White | HEMIPTERA | Nabidae | Nabis | blackburni | White |
| Blackburn dragonfly | Nesogonia blackburni (McLachlan) | ODONATA | Libellulidae | Nesogonia | blackburni | (McLachlan) |
| blackfaced leafhopper | Graminella nigrifrons (Forbes) | HEMIPTERA | Cicadellidae | Graminella | nigrifrons | (Forbes) |
| blackheaded ash sawfly | Tethida barda (Say) | HYMENOPTERA | Tenthredinidae | Tethida | barda | (Say) |
| blackheaded fireworm | Rhopobota naevana (Hübner) | LEPIDOPTERA | Tortricidae | Rhopobota | naevana | (Hübner) |
| blackheaded pine sawfly | Neodiprion excitans Rohwer | HYMENOPTERA | Diprionidae | Neodiprion | excitans | Rohwer |
| blackhorned pine borer | Callidium antennatum hesperum Casey | COLEOPTERA | Cerambycidae | Callidium | antennatum hesperum | Casey |
| blackhorned tree cricket | Oecanthus nigricornis Walker | ORTHOPTERA | Gryllidae | Oecanthus | nigricornis | Walker |
| blackjacket | Vespula consobrina (Saussure) | HYMENOPTERA | Vespidae | Vespula | consobrina | (Saussure) |
| blacklegged tick | Ixodes scapularis Say | ACARI | Ixodidae | Ixodes | scapularis | Say |
| blacklegged tortoise beetle | Jonthonota nigripes (Olivier) | COLEOPTERA | Chrysomelidae | Jonthonota | nigripes | (Olivier) |
| blackmargined aphid | Monellia caryella (Fitch) | HEMIPTERA | Aphididae | Monellia | caryella | (Fitch) |
| blister coneworm | Dioryctria clarioralis (Walker) | LEPIDOPTERA | Pyralidae | Dioryctria | clarioralis | (Walker) |
| bloodsucking conenose | Triatoma sanguisuga (LeConte) | HEMIPTERA | Reduviidae | Triatoma | sanguisuga | (LeConte) |
| blue cactus borer | Melitara dentata (Grote) | LEPIDOPTERA | Pyralidae | Melitara | dentata | (Grote) |
| blue horntail | Sirex cyaneus Fabricius | HYMENOPTERA | Siricidae | Sirex | cyaneus | Fabricius |
| blue soldier fly | Exaireta spinigera (Wiedemann) | DIPTERA | Stratiomyidae | Exaireta | spinigera | (Wiedemann) |
| blueberry bud mite | Acalitus vaccinii (Keifer) | ACARI | Eriophyidae | Acalitus | vaccinii | (Keifer) |
| blueberry case beetle | Neochlamisus cribripennis (LeConte) | COLEOPTERA | Chrysomelidae | Neochlamisus | cribripennis | (LeConte) |
| blueberry flea beetle | Altica sylvia Malloch | COLEOPTERA | Chrysomelidae | Altica | sylvia | Malloch |
| blueberry gall midge | Dasineura oxycoccana (Johnson) | DIPTERA | Cecidomyiidae | Dasineura | oxycoccana | (Johnson) |
| blueberry maggot | Rhagoletis mendax Curran | DIPTERA | Tephritidae | Rhagoletis | mendax | Curran |
| blueberry thrips | Frankliniella vaccinii Morgan | THYSANOPTERA | Thripidae | Frankliniella | vaccinii | Morgan |
| blueberry tip midge | Prodiplosis vaccinii (Felt) | DIPTERA | Cecidomyiidae | Prodiplosis | vaccinii | (Felt) |
| bluegrass billbug | Sphenophorus parvulus Gyllenhal | COLEOPTERA | Curculionidae | Sphenophorus | parvulus | Gyllenhal |
| bluegrass webworm | Parapediasia teterrella (Zincken) | LEPIDOPTERA | Crambidae | Parapediasia | teterrella | (Zincken) |
| blue-green sharpshooter | Graphocephala atropunctata (Signoret) | HEMIPTERA | Cicadellidae | Graphocephala | atropunctata | (Signoret) |
| bluntnosed cranberry leafhopper | Scleroracus vaccinii (Van Duzee) | HEMIPTERA | Cicadellidae | Scleroracus | vaccinii | (Van Duzee) |
| body louse | Pediculus humanus humanus Linnaeus | ANOPLURA | Pediculidae | Pediculus | humanus humanus | Linnaeus |
| Boisduval scale | Diaspis boisduvalii Signoret | HEMIPTERA | Diaspididae | Diaspis | boisduvalii | Signoret |
| boll weevil | Anthonomus grandis grandis Boheman | COLEOPTERA | Curculionidae | Anthonomus | grandis grandis | Boheman |
| bollworm | Helicoverpa zea (Boddie) | LEPIDOPTERA | Noctuidae | Helicoverpa | zea | (Boddie) |
| booklouse | Liposcelis corrodens Heymons | PSOCOPTERA | Liposcelididae | Liposcelis | corrodens | Heymons |
| boreal spruce beetle | Dendroctonus punctatus LeConte | COLEOPTERA | Curculionidae | Dendroctonus | punctatus | LeConte |
| boreal spruce beetle | Dendroctonus punctatus LeConte | COLEOPTERA | Curculionidae | Dendroctonus | punctatus | LeConte |
| boxelder aphid | Periphyllus negundinis (Thomas) | HEMIPTERA | Aphididae | Periphyllus | negundinis | (Thomas) |
| boxelder bug | Boisea trivittata (Say) | HEMIPTERA | Rhopalidae | Boisea | trivittata | (Say) |
| boxelder leafroller | Caloptilia negundella (Chambers) | LEPIDOPTERA | Gracillariidae | Caloptilia | negundella | (Chambers) |
| boxelder psyllid | Cacopsylla negundinis Mally | HEMIPTERA | Psyllidae | Cacopsylla | negundinis | Mally |
| boxelder twig borer | Proteoteras willingana (Kearfott) | LEPIDOPTERA | Tortricidae | Proteoteras | willingana | (Kearfott) |
| boxwood leafminer | Monarthropalpus flavus (Schrank) | DIPTERA | Cecidomyiidae | Monarthropalpus | flavus | (Schrank) |
| boxwood psyllid | Cacopsylla buxi (Linnaeus) | HEMIPTERA | Psyllidae | Cacopsylla | buxi | (Linnaeus) |
| bramble leafhopper | Ribautiana tenerrima (Herrich-Schäffer) | HEMIPTERA | Cicadellidae | Ribautiana | tenerrima | (Herrich-Schäffer) |
| Brasilian leafhopper | Protalebrella brasiliensis (Baker) | HEMIPTERA | Cicadellidae | Protalebrella | brasiliensis | (Baker) |
| bristly cutworm | Lacinipolia renigera (Stephens) | LEPIDOPTERA | Noctuidae | Lacinipolia | renigera | (Stephens) |
| bristly roseslug | Cladius difformis (Panzer) | HYMENOPTERA | Tenthredinidae | Cladius | difformis | (Panzer) |
| broad mite | Polyphagotarsonemus latus (Banks) | ACARI | Tarsonemidae | Polyphagotarsonemus | latus | (Banks) |
| broad necked root borer | Prionus laticollis (Drury) | COLEOPTERA | Cerambycidae | Prionus | laticollis | (Drury) |
| broadbean weevil | Bruchus rufimanus Boheman | COLEOPTERA | Bruchidae | Bruchus | rufimanus | Boheman |
| broadhorned flour beetle | Gnatocerus cornutus (Fabricius) | COLEOPTERA | Tenebrionidae | Gnatocerus | cornutus | (Fabricius) |
| broadnosed grain weevil | Caulophilus oryzae (Gyllenhal) | COLEOPTERA | Curculionidae | Caulophilus | oryzae | (Gyllenhal) |
| broadwinged katydid | Microcentrum rhombifolium (Saussure) | ORTHOPTERA | Tettigoniidae | Microcentrum | rhombifolium | (Saussure) |
| bromegrass seed midge | Contarinia bromicola (Marikovskij &Agafonova) | DIPTERA | Cecidomyiidae | Contarinia | bromicola | (Marikovskij &Agafonova) |
| bronze appletree weevil | Magdalis aenescens LeConte | COLEOPTERA | Curculionidae | Magdalis | aenescens | LeConte |
| bronze birch borer | Agrilus anxius Gory | COLEOPTERA | Buprestidae | Agrilus | anxius | Gory |
| bronze leaf beetle | Diachus auratus (Fabricius) | COLEOPTERA | Chrysomelidae | Diachus | auratus | (Fabricius) |
| bronze poplar borer | Agrilus liragus Barter & Brown | COLEOPTERA | Buprestidae | Agrilus | liragus | Barter & Brown |
| bronzed cutworm | Nephelodes minians Guenée | LEPIDOPTERA | Noctuidae | Nephelodes | minians | Guenée |
| brown chicken louse | Goniodes dissimilis Denny | MALLOPHAGA | Philopteridae | Goniodes | dissimilis | Denny |
| brown citrus aphid | Toxoptera citricida (Kirkaldy) | HEMIPTERA | Aphididae | Toxoptera | citricida | (Kirkaldy) |
| brown cockroach | Periplaneta brunnea Burmeister | BLATTODEA | Blattidae | Periplaneta | brunnea | Burmeister |
| brown cotton leafworm | Acontia dacia Druce | LEPIDOPTERA | Noctuidae | Acontia | dacia | Druce |
| brown dog tick | Rhipicephalus sanguineus (Latreille) | ACARI | Ixodidae | Rhipicephalus | sanguineus | (Latreille) |
| brown dung beetle | Onthophagus gazella Fabricius | COLEOPTERA | Scarabaeidae | Onthophagus | gazella | Fabricius |
| brown flour mite | Gohieria fusca (Oudemans) | ACARI | Glycyphagidae | Gohieria | fusca | (Oudemans) |
| brown garden snail | Cryptomphalus aspersus (Müller) | STYLOMMATOPHORA | Helicidae | Cryptomphalus | aspersus | (Müller) |
| brown house moth | Hofmannophila pseudospretella (Stainton) | LEPIDOPTERA | Oecophoridae | Hofmannophila | pseudospretella | (Stainton) |
| brown mite | Bryobia rubrioculus (Scheuten) | ACARI | Tetranychidae | Bryobia | rubrioculus | (Scheuten) |
| brown pineapple scale | Melanaspis bromiliae (Leonardi) | HEMIPTERA | Diaspididae | Melanaspis | bromiliae | (Leonardi) |
| brown recluse spider | Loxosceles reclusa Gertsch & Mulaik | ARANEAE | Sicariidae | Loxosceles | reclusa | Gertsch & Mulaik |
| brown saltmarsh mosquito | Aedes cantator (Coquillett) | DIPTERA | Culicidae | Aedes | cantator | (Coquillett) |
| brown soft scale | Coccus hesperidum Linnaeus | HEMIPTERA | Coccidae | Coccus | hesperidum | Linnaeus |
| brown speckled leafhopper | Paraphlepsius irroratus (Say) | HEMIPTERA | Cicadellidae | Paraphlepsius | irroratus | (Say) |
| brown spider beetle | Ptinus clavipes Panzer | COLEOPTERA | Ptinidae | Ptinus | clavipes | Panzer |
| brown stink bug | Euschistus servus (Say) | HEMIPTERA | Pentatomidae | Euschistus | servus | (Say) |
| brown wheat mite | Petrobia latens (Müller) | ACARI | Tetranychidae | Petrobia | latens | (Müller) |
| brown widow spider | Latrodectus geometricus C.L. Koch | ARANEAE | Theridiidae | Latrodectus | geometricus | C.L. Koch |
| brownbanded cockroach | Supella longipalpa (Fabricius) | BLATTODEA | Blattellidae | Supella | longipalpa | (Fabricius) |
| brownbelted bumble bee | Bombus griseocollis (DeGeer) | Hymenoptera | Apidae | Bombus | griseocollis | (DeGeer) |
| brownheaded ash sawfly | Tomostethus multicinctus (Rohwer) | HYMENOPTERA | Tenthredinidae | Tomostethus | multicinctus | (Rohwer) |
| brownheaded jack pine sawfly | Neodiprion dubiosus Schedl | HYMENOPTERA | Diprionidae | Neodiprion | dubiosus | Schedl |
| brownlegged grain mite | Aleuroglyphus ovatus (Troupeau) | ACARI | Acaridae | Aleuroglyphus | ovatus | (Troupeau) |
| browntail moth | Euproctis chrysorrhoea (Linnaeus) | LEPIDOPTERA | Lymantriidae | Euproctis | chrysorrhoea | (Linnaeus) |
| Bruce spanworm | Operophtera bruceata (Hulst) | LEPIDOPTERA | Geometridae | Operophtera | bruceata | (Hulst) |
| buck moth | Hemileuca maia (Drury) | LEPIDOPTERA | Saturniidae | Hemileuca | maia | (Drury) |
| buckthorn aphid | Aphis nasturtii Kaltenbach | HEMIPTERA | Aphididae | Aphis | nasturtii | Kaltenbach |
| buffalo treehopper | Stictocephala bisonia Kopp & Yonke | HEMIPTERA | Membracidae | Stictocephala | bisonia | Kopp & Yonke |
| buffalograss webworm | Surattha indentella Kearfott | LEPIDOPTERA | Crambidae | Surattha | indentella | Kearfott |
| bulb mite | Rhizoglyphus echinopus (Fumouze & Robin) | ACARI | Acaridae | Rhizoglyphus | echinopus | (Fumouze & Robin) |
| bulb scale mite | Steneotarsonemus laticeps (Halbert) | ACARI | Tarsonemidae | Steneotarsonemus | laticeps | (Halbert) |
| bumble flower beetle | Euphoria inda (Linnaeus) | COLEOPTERA | Scarabaeidae | Euphoria | inda | (Linnaeus) |
| bumelia fruit fly | Anastrepha pallens Coquillett | DIPTERA | Tephritidae | Anastrepha | pallens | Coquillett |
| burdock borer | Papaipema cataphracta (Grote) | LEPIDOPTERA | Noctuidae | Papaipema | cataphracta | (Grote) |
| Burmeister mantid | Orthodera burmeisteri Wood-Mason | MANTODEA | Mantidae | Orthodera | burmeisteri | Wood-Mason |
| butternut curculio | Conotrachelus juglandis LeConte | COLEOPTERA | Curculionidae | Conotrachelus | juglandis | LeConte |
| C |
| cabbage aphid | Brevicoryne brassicae (Linnaeus) | HEMIPTERA | Aphididae | Brevicoryne | brassicae | (Linnaeus) |
| cabbage curculio | Ceutorhynchus rapae Gyllenhal | COLEOPTERA | Curculionidae | Ceutorhynchus | rapae | Gyllenhal |
| cabbage looper | Trichoplusia ni (Hübner) | LEPIDOPTERA | Noctuidae | Trichoplusia | ni | (Hübner) |
| cabbage maggot | Delia radicum (Linnaeus) | DIPTERA | Anthomyiidae | Delia | radicum | (Linnaeus) |
| cabbage seedpod weevil | Ceutorhynchus assimilis (Paykull) | COLEOPTERA | Curculionidae | Ceutorhynchus | assimilis | (Paykull) |
| cabbage seedstalk curculio | Ceutorhynchus quadridens (Panzer) | COLEOPTERA | Curculionidae | Ceutorhynchus | quadridens | (Panzer) |
| cabbage webworm | Hellula rogatalis (Hulst) | LEPIDOPTERA | Crambidae | Hellula | rogatalis | (Hulst) |
| cactus moth | Cactoblastis cactorum (Berg) | LEPIDOPTERA | Pyralidae | Cactoblastis | cactorum | (Berg) |
| cactus scale | Diaspis echinocacti (Bouché) | HEMIPTERA | Diaspididae | Diaspis | echinocacti | (Bouché) |
| cadelle | Tenebroides mauritanicus (Linnaeus) | COLEOPTERA | Trogossitidae | Tenebroides | mauritanicus | (Linnaeus) |
| Caledonia seed bug | Nysius caledoniae Distant | HEMIPTERA | Lygaeidae | Nysius | caledoniae | Distant |
| calico scale | Eulecanium cerasorum (Cockerell) | HEMIPTERA | Coccidae | Eulecanium | cerasorum | (Cockerell) |
| California fivespined ips | Ips paraconfusus Lanier | COLEOPTERA | Curculionidae | Ips | paraconfusus | Lanier |
| California flatheaded borer | Melanophila californica Van Dyke | COLEOPTERA | Buprestidae | Melanophila | californica | Van Dyke |
| California harvester ant | Pogonomyrmex californicus (Buckley) | HYMENOPTERA | Formicidae | Pogonomyrmex | californicus | (Buckley) |
| California oakworm | Phryganidia californica Packard | LEPIDOPTERA | Notodontidae | Phryganidia | californica | Packard |
| California pear sawfly | Pristiphora abbreviata (Hartig) | HYMENOPTERA | Tenthredinidae | Pristiphora | abbreviata | (Hartig) |
| California prionus | Prionus californicus Motschulsky | COLEOPTERA | Cerambycidae | Prionus | californicus | Motschulsky |
| California red scale | Aonidiella aurantii (Maskell) | HEMIPTERA | Diaspididae | Aonidiella | aurantii | (Maskell) |
| California saltmarsh mosquito | Aedes squamiger (Coquillett) | DIPTERA | Culicidae | Aedes | squamiger | (Coquillett) |
| California tortoiseshell | Nymphalis californica (Boisduval) | LEPIDOPTERA | Nymphalidae | Nymphalis | californica | (Boisduval) |
| camellia scale | Lepidosaphes camelliae Hoke | HEMIPTERA | Diaspididae | Lepidosaphes | camelliae | Hoke |
| camphor scale | Pseudaonidia duplex (Cockerell) | HEMIPTERA | Diaspididae | Pseudaonidia | duplex | (Cockerell) |
| camphor shot borer | Xylosandrus mutilatus (Blandford) | COLEOPTERA | Curculionidae, Scolytinae | Xylosandrus | mutilatus | (Blandford) |
| camphor thrips | Liothrips floridensis (Watson) | THYSANOPTERA | Phlaeothripidae | Liothrips | floridensis | (Watson) |
| caragana aphid | Acyrthosiphon caraganae (Cholodkovsky) | HEMIPTERA | Aphididae | Acyrthosiphon | caraganae | (Cholodkovsky) |
| caragana blister beetle | Epicauta subglabra (Fall) | COLEOPTERA | Meloidae | Epicauta | subglabra | (Fall) |
| caragana plant bug | Lopidea dakota Knight | HEMIPTERA | Miridae | Lopidea | dakota | Knight |
| Caribbean black scale | Saissetia neglecta De Lotto | HEMIPTERA | Coccidae | Saissetia | neglecta | De Lotto |
| Caribbean cicada killer | Sphecius hogardii (Latreille) | Hymenoptera | Crabronidae (sensu stricto) | Sphecius | hogardii | (Latreille) |
| Caribbean fruit fly | Anastrepha suspensa (Loew) | DIPTERA | Tephritidae | Anastrepha | suspensa | (Loew) |
| Caribbean pod borer | Fundella pellucens Zeller | LEPIDOPTERA | Pyralidae | Fundella | pellucens | Zeller |
| carmine spider mite | Tetranychus cinnabarinus (Boisduval) | ACARI | Tetranychidae | Tetranychus | cinnabarinus | (Boisduval) |
| carnation maggot | Delia brunnescens (Zetterstedt) | DIPTERA | Anthomyiidae | Delia | brunnescens | (Zetterstedt) |
| carnation tip maggot | Delia echinata (Séguy) | DIPTERA | Anthomyiidae | Delia | echinata | (Séguy) |
| carob moth | Ectomyelois ceratoniae (Zeller) | LEPIDOPTERA | Pyralidae | Ectomyelois | ceratoniae | (Zeller) |
| carob moth | Ectomyelois ceratoniae (Zoner) | LEPIDOPTERA | Pyralidae | Ectomyelois | ceratoniae | (Zoner) |
| Carolina conifer aphid | Cinara atlantica (Wilson) | HEMIPTERA | Aphididae | Cinara | atlantica | (Wilson) |
| Carolina grasshopper | Dissosteira carolina (Linnaeus) | ORTHOPTERA | Acrididae | Dissosteira | carolina | (Linnaeus) |
| Carolina mantid | Stagmomantis carolina (Johannson) | MANTODEA | Mantidae | Stagmomantis | carolina | (Johannson) |
| carpenter bee | Xylocopa virginica (Linnaeus) | HYMENOPTERA | Anthophoridae | Xylocopa | virginica | (Linnaeus) |
| carpenterworm | Prionoxystus robiniae (Peck) | LEPIDOPTERA | Cossidae | Prionoxystus | robiniae | (Peck) |
| carpet beetle | Anthrenus scrophulariae (Linnaeus) | COLEOPTERA | Dermestidae | Anthrenus | scrophulariae | (Linnaeus) |
| carpet moth | Trichophaga tapetzella (Linnaeus) | LEPIDOPTERA | Tineidae | Trichophaga | tapetzella | (Linnaeus) |
| carrot beetle | Ligyrus gibbosus (De Geer) | COLEOPTERA | Scarabaeidae | Ligyrus | gibbosus | (De Geer) |
| carrot rust fly | Psila rosae (Fabricius) | DIPTERA | Psilidae | Psila | rosae | (Fabricius) |
| carrot weevil | Listronotus oregonensis (LeConte) | COLEOPTERA | Curculionidae | Listronotus | oregonensis | (LeConte) |
| casemaking clothes moth | Tinea pellionella Linnaeus | LEPIDOPTERA | Tineidae | Tinea | pellionella | Linnaeus |
| cat flea | Ctenocephalides felis (Bouché) | SIPHONAPTERA | Pulicidae | Ctenocephalides | felis | (Bouché) |
| cat follicle mite | Demodex cati Mégnin | ACARI | Demodicidae | Demodex | cati | Mégnin |
| cat louse | Felicola subrostratus (Burmeister) | MALLOPHAGA | Trichodectidae | Felicola | subrostratus | (Burmeister) |
| catalpa midge | Contarinia catalpae (Comstock) | DIPTERA | Cecidomyiidae | Contarinia | catalpae | (Comstock) |
| catalpa sphinx | Ceratomia catalpae (Boisduval) | LEPIDOPTERA | Sphingidae | Ceratomia | catalpae | (Boisduval) |
| cattle biting louse | Bovicola bovis (Linnaeus) | MALLOPHAGA | Trichodectidae | Bovicola | bovis | (Linnaeus) |
| cattle follicle mite | Demodex bovis Stiles | ACARI | Demodicidae | Demodex | bovis | Stiles |
| cattle itch mite | Sarcoptes bovis Robin | ACARI | Sarcoptidae | Sarcoptes | bovis | Robin |
| cattle tail louse | Haematopinus quadripertusus Fahrenholz | ANOPLURA | Haematopinidae | Haematopinus | quadripertusus | Fahrenholz |
| cattle tick | Boophilus annulatus (Say) | ACARI | Ixodidae | Boophilus | annulatus | (Say) |
| Cayenne tick | Amblyomma cajennense (Fabricius) | ACARI | Ixodidae | Amblyomma | cajennense | (Fabricius) |
| ceanothus silk moth | Hyalophora euryalus (Boisduval) | LEPIDOPTERA | Saturniidae | Hyalophora | euryalus | (Boisduval) |
| cecropia moth | Hyalophora cecropia (Linnaeus) | LEPIDOPTERA | Saturniidae | Hyalophora | cecropia | (Linnaeus) |
| cedartree borer | Semanotus ligneus (Fabricius) | COLEOPTERA | Cerambycidae | Semanotus | ligneus | (Fabricius) |
| celery aphid | Brachycolus heraclei Takahashi | HEMIPTERA | Aphididae | Brachycolus | heraclei | Takahashi |
| celery leaftier16 | Udea rubigalis (Guenée) | LEPIDOPTERA | Crambidae | Udea | rubigalis | (Guenée) |
| celery looper | Anagrapha falcifera (Kirby) | LEPIDOPTERA | Noctuidae | Anagrapha | falcifera | (Kirby) |
| cereal leaf beetle | Oulema melanopus (Linnaeus) | COLEOPTERA | Chrysomelidae | Oulema | melanopus | (Linnaeus) |
| chaff scale | Parlatoria pergandii Comstock | HEMIPTERA | Diaspididae | Parlatoria | pergandii | Comstock |
| chainspotted geometer | Cingilia catenaria (Drury) | LEPIDOPTERA | Geometridae | Cingilia | catenaria | (Drury) |
| changa | Scapteriscus didactylus (Latreille) | ORTHOPTERA | Gryllotalpidae | Scapteriscus | didactylus | (Latreille) |
| charcoal beetle | Melanophila consputa LeConte | COLEOPTERA | Buprestidae | Melanophila | consputa | LeConte |
| cheese mite | Tyrolichus casei Oudemans | ACARI | Acaridae | Tyrolichus | casei | Oudemans |
| cheese skipper | Piophila casei (Linnaeus) | DIPTERA | Piophilidae | Piophila | casei | (Linnaeus) |
| cherry casebearer | Coleophora pruniella Clemens | LEPIDOPTERA | Coleophoridae | Coleophora | pruniella | Clemens |
| cherry fruit fly15 | Rhagoletis cingulata (Loew) | DIPTERA | Tephritidae | Rhagoletis | cingulata | (Loew) |
| cherry fruit sawfly | Hoplocampa cookei (Clarke) | HYMENOPTERA | Tenthredinidae | Hoplocampa | cookei | (Clarke) |
| cherry fruitworm | Grapholita packardi Zeller | LEPIDOPTERA | Tortricidae | Grapholita | packardi | Zeller |
| cherry leaf beetle | Pyrrhalta cavicollis (LeConte) | COLEOPTERA | Chrysomelidae | Pyrrhalta | cavicollis | (LeConte) |
| chestnut timberworm | Melittomma sericeum (Harris) | COLEOPTERA | Lymexylidae | Melittomma | sericeum | (Harris) |
| chicken body louse | Menacanthus stramineus (Nitzsch) | MALLOPHAGA | Menoponidae | Menacanthus | stramineus | (Nitzsch) |
| chicken dung fly | Fannia pusio (Wiedemann) | DIPTERA | Muscidae | Fannia | pusio | (Wiedemann) |
| chicken head louse | Cuclotogaster heterographus (Nitzsch) | MALLOPHAGA | Philopteridae | Cuclotogaster | heterographus | (Nitzsch) |
| chicken mite | Dermanyssus gallinae (De Geer) | ACARI | Dermanyssidae | Dermanyssus | gallinae | (De Geer) |
| chigoe | Tunga penetrans (Linnaeus) | SIPHONAPTERA | Tungidae | Tunga | penetrans | (Linnaeus) |
| chinch bug | Blissus leucopterus leucopterus (Say) | HEMIPTERA | Lygaeidae | Blissus | leucopterus leucopterus | (Say) |
| Chinese dryinid | Pseudogonatopus hospes Perkins | HYMENOPTERA | Dryinidae | Pseudogonatopus | hospes | Perkins |
| Chinese mantid | Tenodera aridifolia sinensis Saussure | MANTODEA | Mantidae | Tenodera | aridifolia sinensis | Saussure |
| Chinese obscure scale | Parlatoreopsis chinensis (Marlatt) | HEMIPTERA | Diaspididae | Parlatoreopsis | chinensis | (Marlatt) |
| Chinese rose beetle | Adoretus sinicus Burmeister | COLEOPTERA | Scarabaeidae | Adoretus | sinicus | Burmeister |
| chokecherry leafroller | Sparganothis directana (Walker) | LEPIDOPTERA | Tortricidae | Sparganothis | directana | (Walker) |
| chokecherry midge | Contarinia virginianae (Felt) | DIPTERA | Cecidomyiidae | Contarinia | virginianae | (Felt) |
| Christmas berry webworm | Cryptoblabes gnidiella (Millière) | LEPIDOPTERA | Pyralidae | Cryptoblabes | gnidiella | (Millière) |
| chrysanthemum aphid | Macrosiphoniella sanborni (Gillette) | HEMIPTERA | Aphididae | Macrosiphoniella | sanborni | (Gillette) |
| chrysanthemum flower borer | Lorita abornana Busck | LEPIDOPTERA | Tortricidae | Lorita | abornana | Busck |
| chrysanthemum gall midge | Rhopalomyia chrysanthemi (Ahlberg) | DIPTERA | Cecidomyiidae | Rhopalomyia | chrysanthemi | (Ahlberg) |
| chrysanthemum lace bug | Corythucha marmorata (Uhler) | HEMIPTERA | Tingidae | Corythucha | marmorata | (Uhler) |
| chrysanthemum leafminer | Chromatomyia syngenesiae Hardy | DIPTERA | Agromyzidae | Chromatomyia | syngenesiae | Hardy |
| chrysanthemum thrips | Thrips nigropilosus Uzel | THYSANOPTERA | Thripidae | Thrips | nigropilosus | Uzel |
| cicada killer | Sphecius speciosus (Drury) | HYMENOPTERA | Sphecidae | Sphecius | speciosus | (Drury) |
| cigarette beetle | Lasioderma serricorne (Fabricius) | COLEOPTERA | Anobiidae | Lasioderma | serricorne | (Fabricius) |
| cinereous cockroach | Nauphoeta cinerea (Olivier) | BLATTODEA | Blaberidae | Nauphoeta | cinerea | (Olivier) |
| cinnabar moth | Tyria jacobaeae (Linnaeus) | LEPIDOPTERA | Arctiidae | Tyria | jacobaeae | (Linnaeus) |
| citricola scale | Coccus pseudomagnoliarum (Kuwana) | HEMIPTERA | Coccidae | Coccus | pseudomagnoliarum | (Kuwana) |
| citrophilus mealybug | Pseudococcus calceolariae (Maskell) | HEMIPTERA | Pseudococcidae | Pseudococcus | calceolariae | (Maskell) |
| citrus blackfly | Aleurocanthus woglumi Ashby | HEMIPTERA | Aleyrodidae | Aleurocanthus | woglumi | Ashby |
| citrus bud mite | Eriophyes sheldoni Ewing | ACARI | Eriophyidae | Eriophyes | sheldoni | Ewing |
| citrus flat mite | Brevipalpus lewisi McGregor | ACARI | Tenuipalpidae | Brevipalpus | lewisi | McGregor |
| citrus mealybug | Planococcus citri (Risso) | HEMIPTERA | Pseudococcidae | Planococcus | citri | (Risso) |
| citrus red mite | Panonychus citri (McGregor) | ACARI | Tetranychidae | Panonychus | citri | (McGregor) |
| citrus root weevil | Pachnaeus litus (Germar) | COLEOPTERA | Curculionidae | Pachnaeus | litus | (Germar) |
| citrus rust mite | Phyllocoptruta oleivora (Ashmead) | ACARI | Eriophyidae | Phyllocoptruta | oleivora | (Ashmead) |
| citrus snow scale | Unaspis citri (Comstock) | HEMIPTERA | Diaspididae | Unaspis | citri | (Comstock) |
| citrus swallowtail | Papilio xuthus Linnaeus | LEPIDOPTERA | Papilionidae | Papilio | xuthus | Linnaeus |
| citrus thrips | Scirtothrips citri (Moulton) | THYSANOPTERA | Thripidae | Scirtothrips | citri | (Moulton) |
| citrus whitefly | Dialeurodes citri (Ashmead) | HEMIPTERA | Aleyrodidae | Dialeurodes | citri | (Ashmead) |
| claybacked cutworm | Agrotis gladiaria Morrison | LEPIDOPTERA | Noctuidae | Agrotis | gladiaria | Morrison |
| claycolored billbug | Sphenophorus aequalis aequalis Gyllenhal | COLEOPTERA | Curculionidae | Sphenophorus | aequalis aequalis | Gyllenhal |
| claycolored leaf beetle | Anomoea laticlavia (Förster) | COLEOPTERA | Chrysomelidae | Anomoea | laticlavia | (Förster) |
| Clear Lake gnat | Chaoborus astictopus Dyar & Shannon | DIPTERA | Chaoboridae | Chaoborus | astictopus | Dyar & Shannon |
| clearwinged grasshopper | Camnula pellucida (Scudder) | ORTHOPTERA | Acrididae | Camnula | pellucida | (Scudder) |
| clematis blister beetle | Epicauta cinerea (Förster) | COLEOPTERA | Meloidae | Epicauta | cinerea | (Förster) |
| clidemia leafroller | Blepharomastix ebulealis (Guenée) | LEPIDOPTERA | Crambidae | Blepharomastix | ebulealis | (Guenée) |
| clidemia thrips | Liothrips urichi Karny | THYSANOPTERA | Phlaeothripidae | Liothrips | urichi | Karny |
| clouded plant bug | Neurocolpus nubilus (Say) | HEMIPTERA | Miridae | Neurocolpus | nubilus | (Say) |
| clouded sulfur | Colias philodice Godart | LEPIDOPTERA | Pieridae | Colias | philodice | Godart |
| cloudywinged whitefly | Dialeurodes citrifolii (Morgan) | HEMIPTERA | Aleyrodidae | Dialeurodes | citrifolii | (Morgan) |
| clover aphid | Nearctaphis bakeri (Cowen) | HEMIPTERA | Aphididae | Nearctaphis | bakeri | (Cowen) |
| clover aphid parasite | Aphelinus lapisligni Howard | HYMENOPTERA | Encyrtidae | Aphelinus | lapisligni | Howard |
| clover cutworm | Discestra trifolii (Hufnagel) | LEPIDOPTERA | Noctuidae | Discestra | trifolii | (Hufnagel) |
| clover hayworm | Hypsopygia costalis (Fabricius) | LEPIDOPTERA | Pyralidae | Hypsopygia | costalis | (Fabricius) |
| clover head caterpillar | Grapholita interstinctana (Clemens) | LEPIDOPTERA | Tortricidae | Grapholita | interstinctana | (Clemens) |
| clover head weevil | Hypera meles (Fabricius) | COLEOPTERA | Curculionidae | Hypera | meles | (Fabricius) |
| clover leaf midge | Dasineura trifolii (Loew) | DIPTERA | Cecidomyiidae | Dasineura | trifolii | (Loew) |
| clover leaf weevil | Hypera punctata (Fabricius) | COLEOPTERA | Curculionidae | Hypera | punctata | (Fabricius) |
| clover leafhopper | Aceratagallia sanguinolenta (Provancher) | HEMIPTERA | Cicadellidae | Aceratagallia | sanguinolenta | (Provancher) |
| clover looper | Caenurgina crassiuscula (Haworth) | LEPIDOPTERA | Noctuidae | Caenurgina | crassiuscula | (Haworth) |
| clover mite | Bryobia praetiosa Koch | ACARI | Tetranychidae | Bryobia | praetiosa | Koch |
| clover root borer | Hylastinus obscurus (Marsham) | COLEOPTERA | Curculionidae | Hylastinus | obscurus | (Marsham) |
| clover root curculio | Sitona hispidulus (Fabricius) | COLEOPTERA | Curculionidae | Sitona | hispidulus | (Fabricius) |
| clover seed chalcid | Bruchophagus gibbus (Boheman) | HYMENOPTERA | Eurytomidae | Bruchophagus | gibbus | (Boheman) |
| clover seed chalcid | Bruchophagus gibbus (Boheman) | HYMENOPTERA | Eurytomidae | Bruchophagus | gibbus | (Boheman) |
| clover seed midge | Dasineura leguminicola (Lintner) | DIPTERA | Cecidomyiidae | Dasineura | leguminicola | (Lintner) |
| clover seed weevil | Tychius picirostris (Fabricius) | COLEOPTERA | Curculionidae | Tychius | picirostris | (Fabricius) |
| clover stem borer | Languria mozardi Latreille | COLEOPTERA | Languriidae | Languria | mozardi | Latreille |
| cluster fly | Pollenia rudis (Fabricius) | DIPTERA | Calliphoridae | Pollenia | rudis | (Fabricius) |
| cochineal insect | Dactylopius coccus Costa | HEMIPTERA | Dactylopiidae | Dactylopius | coccus | Costa |
| cocklebur weevil | Rhodobaenus quinquedecimpunctatus (Say) | COLEOPTERA | Curculionidae | Rhodobaenus | quinquedecimpunctatus | (Say) |
| coconut leafminer | Agonoxena argaula Meyrick | LEPIDOPTERA | Agonoxenidae | Agonoxena | argaula | Meyrick |
| coconut leafroller | Hedylepta blackburni (Butler) | LEPIDOPTERA | Crambidae | Hedylepta | blackburni | (Butler) |
| coconut mealybug | Nipaecoccus nipae (Maskell) | HEMIPTERA | Pseudococcidae | Nipaecoccus | nipae | (Maskell) |
| coconut scale | Aspidiotus destructor Signoret | HEMIPTERA | Diaspididae | Aspidiotus | destructor | Signoret |
| codling moth | Cydia pomonella (Linnaeus) | LEPIDOPTERA | Tortricidae | Cydia | pomonella | (Linnaeus) |
| coffee bean weevil | Araecerus fasciculatus (De Geer) | COLEOPTERA | Anthribidae | Araecerus | fasciculatus | (De Geer) |
| coffee berry borer | Hypothenemus hampei (Ferrari) | COLEOPTERA | Curculionidae | Hypothenemus | hampei | (Ferrari) |
| Colorado potato beetle | Leptinotarsa decemlineata (Say) | COLEOPTERA | Chrysomelidae | Leptinotarsa | decemlineata | (Say) |
| Columbia Basin wireworm | Limonius subauratus LeConte | COLEOPTERA | Elateridae | Limonius | subauratus | LeConte |
| Columbian timber beetle | Corthylus columbianus Hopkins | COLEOPTERA | Curculionidae | Corthylus | columbianus | Hopkins |
| columbine borer | Papaipema leucostigma (Harris) | LEPIDOPTERA | Noctuidae | Papaipema | leucostigma | (Harris) |
| columbine leafminer complex11 | Phytomyza spp. | DIPTERA | Agromyzidae | Phytomyza | spp. | |
| Comanche lacewing | Chrysoperla comanche (Banks) | NEUROPTERA | Chrysopidae | Chrysoperla | comanche | (Banks) |
| common Australian lady beetle | Coelophora inaequalis (Fabricius) | COLEOPTERA | Coccinellidae | Coelophora | inaequalis | (Fabricius) |
| common cattle grub | Hypoderma lineatum (Villers) | DIPTERA | Oestridae | Hypoderma | lineatum | (Villers) |
| common damsel bug | Nabis americoferus Carayon | HEMIPTERA | Nabidae | Nabis | americoferus | Carayon |
| common eastern bumble bee | Bombus impatiens (Cresson) | Hymenoptera | Apidae | Bombus | impatiens | (Cresson) |
| common green darner | Anax junius (Drury) | ODONATA | Aeshnidae | Anax | junius | (Drury) |
| common green lacewing | Chrysoperla plorabunda (Fitch) | NEUROPTERA | Chrysopidae | Chrysoperla | plorabunda | (Fitch) |
| common malaria mosquito | Anopheles quadrimaculatus Say | DIPTERA | Culicidae | Anopheles | quadrimaculatus | Say |
| composite thrips | Microcephalothrips abdominalis (D.L. Crawford) | THYSANOPTERA | Thripidae | Microcephalothrips | abdominalis | (D.L. Crawford) |
| Comstock mealybug | Pseudococcus comstocki (Kuwana) | HEMIPTERA | Pseudococcidae | Pseudococcus | comstocki | (Kuwana) |
| conchuela | Chlorochroa ligata (Say) | HEMIPTERA | Pentatomidae | Chlorochroa | ligata | (Say) |
| confused flour beetle | Tribolium confusum Jacquelin du Val | COLEOPTERA | Tenebrionidae | Tribolium | confusum | Jacquelin du Val |
| confusing bumble bee | Bombus perplexus (Cresson) | Hymenoptera | Apidae | Bombus | perplexus | (Cresson) |
| conifer spider mite | Oligonychus coniferarum (McGregor) | ACARI | Tetranychidae | Oligonychus | coniferarum | (McGregor) |
| convergent lady beetle | Hippodamia convergens Guérin-Méneville | COLEOPTERA | Coccinellidae | Hippodamia | convergens | Guérin-Méneville |
| Cooley spruce gall adelgid | Adelges cooleyi (Gillette) | HEMIPTERA | Adelgidae | Adelges | cooleyi | (Gillette) |
| corn blotch leafminer | Agromyza parvicornis Loew | DIPTERA | Agromyzidae | Agromyza | parvicornis | Loew |
| corn delphacid | Peregrinus maidis (Ashmead) | HEMIPTERA | Delphacidae | Peregrinus | maidis | (Ashmead) |
| corn flea beetle | Chaetocnema pulicaria Melsheimer | COLEOPTERA | Chrysomelidae | Chaetocnema | pulicaria | Melsheimer |
| corn leaf aphid | Rhopalosiphum maidis (Fitch) | HEMIPTERA | Aphididae | Rhopalosiphum | maidis | (Fitch) |
| corn leafhopper | Dalbulus maidis (DeLong & Wolcott) | HEMIPTERA | Cicadellidae | Dalbulus | maidis | (DeLong & Wolcott) |
| corn root aphid | Aphis maidiradicis Forbes | HEMIPTERA | Aphididae | Aphis | maidiradicis | Forbes |
| corn root aphid | Aphis maidiradicis Forbes | HEMIPTERA | Aphididae | Aphis | maidiradicis | Forbes |
| corn root webworm | Crambus caliginosellus Clemens | LEPIDOPTERA | Crambidae | Crambus | caliginosellus | Clemens |
| corn sap beetle | Carpophilus dimidiatus (Fabricius) | COLEOPTERA | Nitidulidae | Carpophilus | dimidiatus | (Fabricius) |
| corn silk beetle | Metrioidea brunneus (Crotch) | COLEOPTERA | Chrysomelidae | Metrioidea | brunneus | (Crotch) |
| cornfield ant | Lasius alienus (Foerster) | HYMENOPTERA | Formicidae | Lasius | alienus | (Foerster) |
| cornthrips | Frankliniella williamsi Hood | THYSANOPTERA | Thripidae | Frankliniella | williamsi | Hood |
| cosmopolitan grain psocid | Lachesilla pedicularia (Linnaeus) | PSOCOPTERA | Lachesillidae | Lachesilla | pedicularia | (Linnaeus) |
| cotton aphid1 | Aphis gossypii Glover | HEMIPTERA | Aphididae | Aphis | gossypii | Glover |
| cotton blister mite | Acalitus gossypii (Banks) | ACARI | Eriophyidae | Acalitus | gossypii | (Banks) |
| cotton fleahopper | Pseudatomoscelis seriatus (Reuter) | HEMIPTERA | Miridae | Pseudatomoscelis | seriatus | (Reuter) |
| cotton lace bug | Corythucha gossypii (Fabricius) | HEMIPTERA | Tingidae | Corythucha | gossypii | (Fabricius) |
| cotton leafminer | Stigmella gossypii (Forbes & Leonard) | LEPIDOPTERA | Nepticulidae | Stigmella | gossypii | (Forbes & Leonard) |
| cotton leafperforator | Bucculatrix thurberiella Busck | LEPIDOPTERA | Bucculatricidae | Bucculatrix | thurberiella | Busck |
| cotton leafworm | Alabama argillacea (Hübner) | LEPIDOPTERA | Noctuidae | Alabama | argillacea | (Hübner) |
| cotton square borer | Strymon melinus Hübner | LEPIDOPTERA | Lycaenidae | Strymon | melinus | Hübner |
| cotton stainer | Dysdercus suturellus (Herrich-Schäffer) | HEMIPTERA | Pyrrhocoridae | Dysdercus | suturellus | (Herrich-Schäffer) |
| cotton stem moth | Platyedra subcinerea (Haworth) | LEPIDOPTERA | Gelechiidae | Platyedra | subcinerea | (Haworth) |
| cottonwood borer | Plectrodera scalator (Fabricius) | COLEOPTERA | Cerambycidae | Plectrodera | scalator | (Fabricius) |
| cottonwood dagger moth | Acronicta lepusculina Guenée | LEPIDOPTERA | Noctuidae | Acronicta | lepusculina | Guenée |
| cottonwood leaf beetle | Chrysomela scripta Fabricius | COLEOPTERA | Chrysomelidae | Chrysomela | scripta | Fabricius |
| cottonwood twig borer | Gypsonoma haimbachiana (Kearfott) | LEPIDOPTERA | Tortricidae | Gypsonoma | haimbachiana | (Kearfott) |
| cottony cushion scale | Icerya purchasi Maskell | HEMIPTERA | Margarodidae | Icerya | purchasi | Maskell |
| cottony maple scale | Pulvinaria innumerabilis (Rathvon) | HEMIPTERA | Coccidae | Pulvinaria | innumerabilis | (Rathvon) |
| cottony peach scale | Pulvinaria amygdali Cockerell | HEMIPTERA | Coccidae | Pulvinaria | amygdali | Cockerell |
| coulee cricket | Peranabrus scabricollis (Thomas) | ORTHOPTERA | Tettigoniidae | Peranabrus | scabricollis | (Thomas) |
| cowpea aphid | Aphis craccivora Koch | HEMIPTERA | Aphididae | Aphis | craccivora | Koch |
| cowpea curculio | Chalcodermus aeneus Boheman | COLEOPTERA | Curculionidae | Chalcodermus | aeneus | Boheman |
| cowpea weevil | Callosobruchus maculatus (Fabricius) | COLEOPTERA | Bruchidae | Callosobruchus | maculatus | (Fabricius) |
| crab louse | Pthirus pubis (Linnaeus) | ANOPLURA | Pthiridae | Pthirus | pubis | (Linnaeus) |
| crabhole mosquito | Deinocerites cancer Theobald | DIPTERA | Culicidae | Deinocerites | cancer | Theobald |
| cranberry fruitworm | Acrobasis vaccinii Riley | LEPIDOPTERA | Pyralidae | Acrobasis | vaccinii | Riley |
| cranberry girdler | Chrysoteuchia topiaria (Zeller) | LEPIDOPTERA | Crambidae | Chrysoteuchia | topiaria | (Zeller) |
| cranberry rootworm | Rhabdopterus picipes (Olivier) | COLEOPTERA | Chrysomelidae | Rhabdopterus | picipes | (Olivier) |
| cranberry weevil | Anthonomus musculus Say | COLEOPTERA | Curculionidae | Anthonomus | musculus | Say |
| crapemyrtle aphid | Tinocallis kahawaluokalani (Kirkaldy) | HEMIPTERA | Aphididae | Tinocallis | kahawaluokalani | (Kirkaldy) |
| crazy ant | Paratrechina longicornis (Latreille) | HYMENOPTERA | Formicidae | Paratrechina | longicornis | (Latreille) |
| creosotebush spider mite | Pseudobryobia drummondi (Ewing) | ACARI | Tetranychidae | Pseudobryobia | drummondi | (Ewing) |
| creosotebush spider mite | Pseudobryobia drummondi (Ewing) | ACARI | Tetranychidae | Pseudobryobia | drummondi | (Ewing) |
| crescentmarked lily aphid | Aulacorthum circumflexum (Buckton) | HEMIPTERA | Aphididae | Aulacorthum | circumflexum | (Buckton) |
| cribrate weevil | Otiorhynchus cribricollis Gyllenhal | COLEOPTERA | Curculionidae | Otiorhynchus | cribricollis | Gyllenhal |
| crinkled flannel moth | Lagoa crispata (Packard) | LEPIDOPTERA | Megalopygidae | Lagoa | crispata | (Packard) |
| cross-striped cabbageworm | Evergestis rimosalis (Guenée) | LEPIDOPTERA | Crambidae | Evergestis | rimosalis | (Guenée) |
| croton caterpillar | Achaea janata (Linnaeus) | LEPIDOPTERA | Noctuidae | Achaea | janata | (Linnaeus) |
| croton mussel scale | Lepidosaphes tokionis (Kuwana) | HEMIPTERA | Diaspididae | Lepidosaphes | tokionis | (Kuwana) |
| Cuban cockroach | Panchlora nivea (Linnaeus) | BLATTODEA | Blaberidae | Panchlora | nivea | (Linnaeus) |
| Cuban laurel thrips | Gynaikothrips ficorum (Marchal) | THYSANOPTERA | Phlaeothripidae | Gynaikothrips | ficorum | (Marchal) |
| cucurbit longicorn | Apomecyna saltator (Fabricius) | COLEOPTERA | Cerambycidae | Apomecyna | saltator | (Fabricius) |
| cucurbit midge | Prodiplosis citrulli (Felt) | DIPTERA | Cecidomyiidae | Prodiplosis | citrulli | (Felt) |
| curled rose sawfly | Allantus cinctus (Linnaeus) | HYMENOPTERA | Tenthredinidae | Allantus | cinctus | (Linnaeus) |
| currant aphid | Cryptomyzus ribis (Linnaeus) | HEMIPTERA | Aphididae | Cryptomyzus | ribis | (Linnaeus) |
| currant borer | Synanthedon tipuliformis (Clerck) | LEPIDOPTERA | Sesiidae | Synanthedon | tipuliformis | (Clerck) |
| currant bud mite | Cecidophyopsis ribis (Westwood) | ACARI | Eriophyidae | Cecidophyopsis | ribis | (Westwood) |
| currant fruit fly | Euphranta canadensis (Loew) | DIPTERA | Tephritidae | Euphranta | canadensis | (Loew) |
| currant fruit weevil | Pseudanthonomus validus Dietz | COLEOPTERA | Curculionidae | Pseudanthonomus | validus | Dietz |
| currant spanworm | Itame ribearia (Fitch) | LEPIDOPTERA | Geometridae | Itame | ribearia | (Fitch) |
| currant stem girdler | Janus integer (Norton) | HYMENOPTERA | Cephidae | Janus | integer | (Norton) |
| cyclamen mite | Phytonemus pallidus (Banks) | ACARI | Tarsonemidae | Phytonemus | pallidus | (Banks) |
| cynthia moth | Samia cynthia (Drury) | LEPIDOPTERA | Saturniidae | Samia | cynthia | (Drury) |
| D |
| dandelion gall wasp | Phanacis taraxaci (Ashmead) | HYMENOPTERA | Cynipidae | Phanacis | taraxaci | (Ashmead) |
| dark mealworm | Tenebrio obscurus Fabricius | COLEOPTERA | Tenebrionidae | Tenebrio | obscurus | Fabricius |
| darksided cutworm | Euxoa messoria (Harris) | LEPIDOPTERA | Noctuidae | Euxoa | messoria | (Harris) |
| datebug | Asarcopus palmarum Horvath | HEMIPTERA | Issidae | Asarcopus | palmarum | Horvath |
| Dehli Sands flower-loving fly | Rhaphiomidas terminatus abdominalis Cazier | DIPTERA | Apioceridae | Rhaphiomidas | terminatus abdominalis | Cazier |
| Delhi Sands flower-loving fly | Rhaphiomidas terminatus abdominalis (Cazier) | DIPTERA | Apioceridae | Rhaphiomidas terminatus | abdominalis | (Cazier) |
| depluming mite | Neocnemidocoptes gallinae (Railliet) | ACARI | Sarcoptidae | Neocnemidocoptes | gallinae | (Railliet) |
| depressed flour beetle | Palorus subdepressus (Wollaston) | COLEOPTERA | Tenebrionidae | Palorus | subdepressus | (Wollaston) |
| desert corn flea beetle | Chaetocnema ectypa Horn | COLEOPTERA | Chrysomelidae | Chaetocnema | ectypa | Horn |
| desert spider mite | Tetranychus desertorum Banks | ACARI | Tetranychidae | Tetranychus | desertorum | Banks |
| devastating grasshopper | Melanoplus devastator Scudder | ORTHOPTERA | Acrididae | Melanoplus | devastator | Scudder |
| diamondback moth | Plutella xylostella (Linnaeus) | LEPIDOPTERA | Plutellidae | Plutella | xylostella | (Linnaeus) |
| diamondbacked spittlebug | Lepyronia quadrangularis (Say) | HEMIPTERA | Cercopidae | Lepyronia | quadrangularis | (Say) |
| dictyospermum scale | Chrysomphalus dictyospermi (Morgan) | HEMIPTERA | Diaspididae | Chrysomphalus | dictyospermi | (Morgan) |
| differential grasshopper | Melanoplus differentialis (Thomas) | ORTHOPTERA | Acrididae | Melanoplus | differentialis | (Thomas) |
| dingy cutworm | Feltia jaculifera (Guenée) | LEPIDOPTERA | Noctuidae | Feltia | jaculifera | (Guenée) |
| dobsonfly6 | Corydalus cornutus (Linnaeus) | NEUROPTERA | Corydalidae | Corydalus | cornutus | (Linnaeus) |
| dock sawfly | Ametastegia glabrata (Fallén) | HYMENOPTERA | Tenthredinidae | Ametastegia | glabrata | (Fallén) |
| dodder gall weevil | Smicronyx sculpticollis Casey | COLEOPTERA | Curculionidae | Smicronyx | sculpticollis | Casey |
| dog biting louse | Trichodectes canis (De Geer) | MALLOPHAGA | Trichodectidae | Trichodectes | canis | (De Geer) |
| dog flea | Ctenocephalides canis (Curtis) | SIPHONAPTERA | Pulicidae | Ctenocephalides | canis | (Curtis) |
| dog follicle mite | Demodex canis Leydig | ACARI | Demodicidae | Demodex | canis | Leydig |
| dog sucking louse | Linognathus setosus (Olfers) | ANOPLURA | Linognathidae | Linognathus | setosus | (Olfers) |
| dogwood borer | Synanthedon scitula (Harris) | LEPIDOPTERA | Sesiidae | Synanthedon | scitula | (Harris) |
| dogwood clubgall midge | Resseliella clavula (Beutermüller) | DIPTERA | Cecidomyiidae | Resseliella | clavula | (Beutermüller) |
| dogwood scale | Chionaspis corni Cooley | HEMIPTERA | Diaspididae | Chionaspis | corni | Cooley |
| dogwood spittlebug | Clastoptera proteus Fitch | HEMIPTERA | Cercopidae | Clastoptera | proteus | Fitch |
| dogwood twig borer | Oberea tripunctata (Swederus) | COLEOPTERA | Cerambycidae | Oberea | tripunctata | (Swederus) |
| Douglas-fir beetle | Dendroctonus pseudotsugae Hopkins | COLEOPTERA | Curculionidae | Dendroctonus | pseudotsugae | Hopkins |
| Douglas-fir cone gall midge | Contarinia oregonensis Foote | DIPTERA | Cecidomyiidae | Contarinia | oregonensis | Foote |
| Douglas-fir cone moth | Barbara colfaxiana (Kearfott) | LEPIDOPTERA | Tortricidae | Barbara | colfaxiana | (Kearfott) |
| Douglas-fir cone scale midge | Contarinia washingtonensis Johnson | DIPTERA | Cecidomyiidae | Contarinia | washingtonensis | Johnson |
| Douglas-fir engraver | Scolytus unispinosus LeConte | COLEOPTERA | Curculionidae | Scolytus | unispinosus | LeConte |
| Douglas-fir pitch moth | Synanthedon novaroensis (Hy. Edwards) | LEPIDOPTERA | Sesiidae | Synanthedon | novaroensis | (Hy. Edwards) |
| Douglas-fir pole beetle | Pseudohylesinus nebulosus (LeConte) | COLEOPTERA | Curculionidae, Scolytinae | Pseudohylesinus | nebulosus | (LeConte) |
| Douglas-fir tussock moth | Orgyia pseudotsugata (McDunnough) | LEPIDOPTERA | Lymantriidae | Orgyia | pseudotsugata | (McDunnough) |
| Douglas-fir twig weevil | Cylindrocopturus furnissi Buchanan | COLEOPTERA | Curculionidae | Cylindrocopturus | furnissi | Buchanan |
| driedfruit beetle | Carpophilus hemipterus (Linnaeus) | COLEOPTERA | Nitidulidae | Carpophilus | hemipterus | (Linnaeus) |
| driedfruit mite | Carpoglyphus lactis (Linnaeus) | ACARI | Carpoglyphidae | Carpoglyphus | lactis | (Linnaeus) |
| driedfruit moth | Vitula serratilineella Ragonot | LEPIDOPTERA | Pyralidae | Vitula | serratilineella | Ragonot |
| drone fly | Eristalis tenax (Linnaeus) | DIPTERA | Syrphidae | Eristalis | tenax | (Linnaeus) |
| drugstore beetle | Stegobium paniceum (Linnaeus) | COLEOPTERA | Anobiidae | Stegobium | paniceum | (Linnaeus) |
| dryberry mite | Phyllocoptes gracilis (Nalepa) | ACARI | Eriophyidae | Phyllocoptes | gracilis | (Nalepa) |
| dryland wireworm | Ctenicera glauca (Germar) | COLEOPTERA | Elateridae | Ctenicera | glauca | (Germar) |
| dusky birch sawfly | Croesus latitarsus Norton | HYMENOPTERA | Tenthredinidae | Croesus | latitarsus | Norton |
| dusky sap beetle | Carpophilus lugubris Murray | COLEOPTERA | Nitidulidae | Carpophilus | lugubris | Murray |
| dusky stink bug | Euschistus tristigmus (Say) | HEMIPTERA | Pentatomidae | Euschistus | tristigmus | (Say) |
| duskyback leafroller | Archips mortuana Kearfott | LEPIDOPTERA | Tortricidae | Archips | mortuana | Kearfott |
| E |
| ear tick | Otobius megnini (Dugès) | ACARI | Argasidae | Otobius | megnini | (Dugès) |
| eastern blackheaded budworm | Acleris variana (Fernald) | LEPIDOPTERA | Tortricidae | Acleris | variana | (Fernald) |
| eastern cicada killer | Sphecius speciosus (Drury) | Hymenoptera | Crabronidae (sensu stricto) | Sphecius | speciosus | (Drury) |
| eastern field wireworm | Limonius agonus (Say) | COLEOPTERA | Elateridae | Limonius | agonus | (Say) |
| eastern fivespined ips | Ips grandicollis (Eichhoff) | COLEOPTERA | Curculionidae | Ips | grandicollis | (Eichhoff) |
| eastern grape leafhopper | Erythroneura comes (Say) | HEMIPTERA | Cicadellidae | Erythroneura | comes | (Say) |
| eastern Hercules beetle | Dynastes tityus (Linnaeus) | COLEOPTERA | Scarabaeidae | Dynastes | tityus | (Linnaeus) |
| eastern larch beetle | Dendroctonus simplex LeConte | COLEOPTERA | Curculionidae | Dendroctonus | simplex | LeConte |
| eastern lubber grasshopper | Romalea guttata (Houttuyn) | ORTHOPTERA | Acrididae | Romalea | guttata | (Houttuyn) |
| eastern pine looper | Lambdina pellucidaria (Grote & Robinson) | LEPIDOPTERA | Geometridae | Lambdina | pellucidaria | (Grote & Robinson) |
| eastern pine seedworm | Cydia toreuta (Grote) | LEPIDOPTERA | Tortricidae | Cydia | toreuta | (Grote) |
| eastern pine shoot borer | Eucosma gloriola Heinrich | LEPIDOPTERA | Tortricidae | Eucosma | gloriola | Heinrich |
| eastern pine weevil | Pissodes nemorensis Germar | COLEOPTERA | Curculionidae | Pissodes | nemorensis | Germar |
| eastern spruce gall adelgid | Adelges abietis (Linnaeus) | HEMIPTERA | Adelgidae | Adelges | abietis | (Linnaeus) |
| eastern subterranean termite | Reticulitermes flavipes (Kollar) | ISOPTERA | Rhinotermitidae | Reticulitermes | flavipes | (Kollar) |
| eastern tent caterpillar | Malacosoma americanum (Fabricius) | LEPIDOPTERA | Lasiocampidae | Malacosoma | americanum | (Fabricius) |
| eastern yellowjacket | Vespula maculifrons (Buysson) | HYMENOPTERA | Vespidae | Vespula | maculifrons | (Buysson) |
| eggplant flea beetle | Epitrix fuscula Crotch | COLEOPTERA | Chrysomelidae | Epitrix | fuscula | Crotch |
| eggplant lace bug | Gargaphia solani Heidemann | HEMIPTERA | Tingidae | Gargaphia | solani | Heidemann |
| eggplant leafminer | Tildenia inconspicuella (Murtfeldt) | LEPIDOPTERA | Gelechiidae | Tildenia | inconspicuella | (Murtfeldt) |
| Egyptian alfalfa weevil | Hypera brunnipennis (Boheman) | COLEOPTERA | Curculionidae | Hypera | brunnipennis | (Boheman) |
| eightspotted forester | Alypia octomaculata (Fabricius) | LEPIDOPTERA | Noctuidae | Alypia | octomaculata | (Fabricius) |
| El Segundo blue | Euphilotes battoides allyni (Shields) | LEPIDOPTERA | Lycaenidae | Euphilotes | battoides allyni | (Shields) |
| elder shoot borer | Achatodes zeae (Harris) | LEPIDOPTERA | Noctuidae | Achatodes | zeae | (Harris) |
| elm borer | Saperda tridentata Olivier | COLEOPTERA | Cerambycidae | Saperda | tridentata | Olivier |
| elm calligrapha | Calligrapha scalaris (LeConte) | COLEOPTERA | Chrysomelidae | Calligrapha | scalaris | (LeConte) |
| elm casebearer | Coleophora ulmifoliella McDunnough | LEPIDOPTERA | Coleophoridae | Coleophora | ulmifoliella | McDunnough |
| elm cockscombgall aphid | Colopha ulmicola (Fitch) | HEMIPTERA | Aphididae | Colopha | ulmicola | (Fitch) |
| elm flea beetle | Altica carinata Germar | COLEOPTERA | Chrysomelidae | Altica | carinata | Germar |
| elm lace bug | Corythucha ulmi Osborn & Drake | HEMIPTERA | Tingidae | Corythucha | ulmi | Osborn & Drake |
| elm leaf aphid | Tinocallis ulmifolii (Monell) | HEMIPTERA | Aphididae | Tinocallis | ulmifolii | (Monell) |
| elm leaf beetle | Pyrrhalta luteola (Müller) | COLEOPTERA | Chrysomelidae | Pyrrhalta | luteola | (Müller) |
| elm leafminer | Kaliofenusa ulmi (Sundevall) | HYMENOPTERA | Tenthredinidae | Kaliofenusa | ulmi | (Sundevall) |
| elm sawfly | Cimbex americana Leach | HYMENOPTERA | Cimbicidae | Cimbex | americana | Leach |
| elm scurfy scale | Chionaspis americana Johnson | HEMIPTERA | Diaspididae | Chionaspis | americana | Johnson |
| elm spanworm | Ennomos subsignaria (Hübner) | LEPIDOPTERA | Geometridae | Ennomos | subsignaria | (Hübner) |
| elm sphinx | Ceratomia amyntor (Geyer) | LEPIDOPTERA | Sphingidae | Ceratomia | amyntor | (Geyer) |
| elongate flea beetle | Systena elongata (Fabricius) | COLEOPTERA | Chrysomelidae | Systena | elongata | (Fabricius) |
| elongate hemlock scale | Fiorinia externa Ferris | HEMIPTERA | Diaspididae | Fiorinia | externa | Ferris |
| emerald ash borer | Agrilus planipennis Fairmaire | COLEOPTERA | Buprestidae | Agrilus | planipennis | Fairmaire |
| emerald cockroach wasp | Ampulex compressa (Fabricius) | HYMENOPTERA | Sphecidae | Ampulex | compressa | (Fabricius) |
| Engelmann spruce weevil13 | Pissodes strobi (Peck) | COLEOPTERA | Curculionidae | Pissodes | strobi | (Peck) |
| English grain aphid | Sitobion avenae (Fabricius) | HEMIPTERA | Aphididae | Sitobion | avenae | (Fabricius) |
| erigeron root aphid | Aphis middletonii Thomas | HEMIPTERA | Aphididae | Aphis | middletonii | Thomas |
| ermine moth | Yponomeuta padella (Linnaeus) | LEPIDOPTERA | Yponomeutidae | Yponomeuta | padella | (Linnaeus) |
| eucalyptus longhorned borer | Phoracantha semipunctata (Fabricius) | COLEOPTERA | Cerambycidae | Phoracantha | semipunctata | (Fabricius) |
| eugenia caterpillar | Targalla delatrix (Guenée) | LEPIDOPTERA | Noctuidae | Targalla | delatrix | (Guenée) |
| euonymus scale | Unaspis euonymi (Comstock) | HEMIPTERA | Diaspididae | Unaspis | euonymi | (Comstock) |
| eupatorium gall fly | Procecidochares utilis Stone | DIPTERA | Tephritidae | Procecidochares | utilis | Stone |
| Eurasian pine adelgid | Pineus pini (Macquart) | HEMIPTERA | Adelgidae | Pineus | pini | (Macquart) |
| European alder leafminer | Fenusa dohrnii (Tischbein) | HYMENOPTERA | Tenthredinidae | Fenusa | dohrnii | (Tischbein) |
| European apple sawfly | Hoplocampa testudinea (Klug) | HYMENOPTERA | Tenthredinidae | Hoplocampa | testudinea | (Klug) |
| European chafer | Rhizotrogus majalis (Razoumowsky) | COLEOPTERA | Scarabaeidae | Rhizotrogus | majalis | (Razoumowsky) |
| European chafer | Rhizotrogus majalis (Razoumowsky) | COLEOPTERA | Scarabaeidae | Rhizotrogus | majalis | (Razoumowsky) |
| European chicken flea | Ceratophyllus gallinae (Schrank) | SIPHONAPTERA | Ceratophyllidae | Ceratophyllus | gallinae | (Schrank) |
| European corn borer | Ostrinia nubilalis (Hübner) | LEPIDOPTERA | Crambidae | Ostrinia | nubilalis | (Hübner) |
| European crane fly | Tipula paludosa Meigen | DIPTERA | Tipulidae | Tipula | paludosa | Meigen |
| European earwig | Forficula auricularia Linnaeus | DERMAPTERA | Forficulidae | Forficula | auricularia | Linnaeus |
| European elm bark beetle | Scolytus multistriatus (Marsham)* | COLEOPTERA | Curculionidae | Scolytus | multistriatus | (Marsham)* |
| European elm bark beetle | Scolytus multistriatus (Marsham) | COLEOPTERA | Curculionidae | Scolytus | multistriatus | (Marsham) |
| European elm scale | Gossyparia spuria (Modeer) | HEMIPTERA | Eriococcidae | Gossyparia | spuria | (Modeer) |
| European fruit lecanium | Parthenolecanium corni (Bouché) | HEMIPTERA | Coccidae | Parthenolecanium | corni | (Bouché) |
| European fruit scale | Quadraspidiotus ostreaeformis (Curtis) | HEMIPTERA | Diaspididae | Quadraspidiotus | ostreaeformis | (Curtis) |
| European grain moth | Nemapogon granella (Linnaeus) | LEPIDOPTERA | Tineidae | Nemapogon | granella | (Linnaeus) |
| European honeysuckle leafroller | Ypsolopha dentella (Fabricius) | LEPIDOPTERA | Plutellidae | Ypsolopha | dentella | (Fabricius) |
| European hornet | Vespa crabro Linnaeus | HYMENOPTERA | Vespidae | Vespa | crabro | Linnaeus |
| European house dust mite | Dermatophagoides pteronyssinus (Trouessart) | ACARI | Epidermoptidae | Dermatophagoides | pteronyssinus | (Trouessart) |
| European mantid | Mantis religiosa Linnaeus | MANTODEA | Mantidae | Mantis | religiosa | Linnaeus |
| European mouse flea | Leptopsylla segnis (Schönherr) | SIPHONAPTERA | Leptopsyllidae | Leptopsylla | segnis | (Schönherr) |
| European peach scale | Parthenolecanium persicae (Fabricius) | HEMIPTERA | Coccidae | Parthenolecanium | persicae | (Fabricius) |
| European pine sawfly | Neodiprion sertifer (Geoffroy) | HYMENOPTERA | Diprionidae | Neodiprion | sertifer | (Geoffroy) |
| European pine shoot moth | Rhyacionia buoliana (Denis & Schiffermüller) | LEPIDOPTERA | Tortricidae | Rhyacionia | buoliana | (Denis & Schiffermüller) |
| European red mite | Panonychus ulmi (Koch) | ACARI | Tetranychidae | Panonychus | ulmi | (Koch) |
| European spruce beetle | Dendroctonus micans (Kugelann) | COLEOPTERA | Curculionidae | Dendroctonus | micans | (Kugelann) |
| European spruce sawfly | Gilpinia hercyniae (Hartig) | HYMENOPTERA | Diprionidae | Gilpinia | hercyniae | (Hartig) |
| European wheat stem sawfly | Cephus pygmaeus (Linnaeus) | HYMENOPTERA | Cephidae | Cephus | pygmaeus | (Linnaeus) |
| eyed click beetle | Alaus oculatus (Linnaeus) | COLEOPTERA | Elateridae | Alaus | oculatus | (Linnaeus) |
| eyespotted bud moth | Spilonota ocellana (Denis & Schiffermüller) | LEPIDOPTERA | Tortricidae | Spilonota | ocellana | (Denis & Schiffermüller) |
| F |
| face fly | Musca autumnalis De Geer | DIPTERA | Muscidae | Musca | autumnalis | De Geer |
| fall armyworm | Spodoptera frugiperda ( J.E. Smith) | LEPIDOPTERA | Noctuidae | Spodoptera | frugiperda ( | J.E. Smith) |
| fall cankerworm | Alsophila pometaria (Harris) | LEPIDOPTERA | Geometridae | Alsophila | pometaria | (Harris) |
| fall webworm | Hyphantria cunea (Drury) | LEPIDOPTERA | Arctiidae | Hyphantria | cunea | (Drury) |
| false celery leaftier | Udea profundalis (Packard) | LEPIDOPTERA | Crambidae | Udea | profundalis | (Packard) |
| false chinch bug | Nysius raphanus Howard | HEMIPTERA | Lygaeidae | Nysius | raphanus | Howard |
| false German cockroach | Blattella lituricollis (Walker) | BLATTODEA | Blattellidae | Blattella | lituricollis | (Walker) |
| false hemlock looper | Nepytia canosaria (Walker) | LEPIDOPTERA | Geometridae | Nepytia | canosaria | (Walker) |
| false potato beetle | Leptinotarsa juncta (Germar) | COLEOPTERA | Chrysomelidae | Leptinotarsa | juncta | (Germar) |
| false stable fly | Muscina stabulans (Fallén) | DIPTERA | Muscidae | Muscina | stabulans | (Fallén) |
| feather mite | Megninia cubitalis (Mégnin) | ACARI | Analgidae | Megninia | cubitalis | (Mégnin) |
| fern aphid | Idiopterus nephrelepidis Davis | HEMIPTERA | Aphididae | Idiopterus | nephrelepidis | Davis |
| fern scale | Pinnaspis aspidistrae (Signoret) | HEMIPTERA | Diaspididae | Pinnaspis | aspidistrae | (Signoret) |
| Fernald cuckoo bumble bee | Bombus fernaldae (Franklin) | Hymenoptera | Apidae | Bombus | fernaldae | (Franklin) |
| fiery hunter | Calosoma calidum (Fabricius) | COLEOPTERA | Carabidae | Calosoma | calidum | (Fabricius) |
| fiery skipper | Hylephila phyleus (Drury) | LEPIDOPTERA | Hesperiidae | Hylephila | phyleus | (Drury) |
| fig mite | Eriophyes ficus Cotte | ACARI | Eriophyidae | Eriophyes | ficus | Cotte |
| fig scale | Lepidosaphes conchiformis (Gmelin) | HEMIPTERA | Diaspididae | Lepidosaphes | conchiformis | (Gmelin) |
| fig wasp | Blastophaga psenes (Linnaeus) | HYMENOPTERA | Agaonidae | Blastophaga | psenes | (Linnaeus) |
| Fijian ginger weevil | Elytroteinus subtruncatus (Fairmaire) | COLEOPTERA | Curculionidae | Elytroteinus | subtruncatus | (Fairmaire) |
| filament bearer | Nematocampa resistaria (Herrich-Schäffer) | LEPIDOPTERA | Geometridae | Nematocampa | resistaria | (Herrich-Schäffer) |
| filbert aphid | Myzocallis coryli (Goetze) | HEMIPTERA | Aphididae | Myzocallis | coryli | (Goetze) |
| filbert bud mite | Phytocoptella avellanae (Nalepa) | ACARI | Nalepellidae | Phytocoptella | avellanae | (Nalepa) |
| filbert weevil | Curculio occidentis (Casey) | COLEOPTERA | Curculionidae | Curculio | occidentis | (Casey) |
| filbertworm | Cydia latiferreana (Walsingham) | LEPIDOPTERA | Tortricidae | Cydia | latiferreana | (Walsingham) |
| fir cone looper | Eupithecia spermaphaga (Dyar) | LEPIDOPTERA | Geometridae | Eupithecia | spermaphaga | (Dyar) |
| fir engraver | Scolytus ventralis LeConte | COLEOPTERA | Curculionidae | Scolytus | ventralis | LeConte |
| fir root bark beetle | Pseudohylesinus granulatus (LeConte) | COLEOPTERA | Curculionidae | Pseudohylesinus | granulatus | (LeConte) |
| fir seed moth | Cydia bracteatana (Fernald) | LEPIDOPTERA | Tortricidae | Cydia | bracteatana | (Fernald) |
| firebrat | Thermobia domestica (Packard) | THYSANURA | Lepismatidae | Thermobia | domestica | (Packard) |
| firtree borer | Semanotus litigiosus (Casey) | COLEOPTERA | Cerambycidae | Semanotus | litigiosus | (Casey) |
| fivespotted gamagrass leafhopper | Dalbulus quinquenotatus DeLong & Nault | HEMIPTERA | Cicadellidae. | Dalbulus | quinquenotatus | DeLong & Nault |
| flat grain beetle | Cryptolestes pusillus (Schönherr) | COLEOPTERA | Laemophloeidae | Cryptolestes | pusillus | (Schönherr) |
| flatheaded appletree borer | Chrysobothris femorata (Olivier) | COLEOPTERA | Buprestidae | Chrysobothris | femorata | (Olivier) |
| flatheaded cone borer | Chrysophana placida conicola Van Dyke | COLEOPTERA | Buprestidae | Chrysophana | placida conicola | Van Dyke |
| flatheaded fir borer | Melanophila drummondi (Kirby) | COLEOPTERA | Buprestidae | Melanophila | drummondi | (Kirby) |
| flax bollworm | Heliothis ononis (Denis & Schiffermüller) | LEPIDOPTERA | Noctuidae | Heliothis | ononis | (Denis & Schiffermüller) |
| Fletcher scale | Parthenolecanium fletcheri (Cockerell) | HEMIPTERA | Coccidae | Parthenolecanium | fletcheri | (Cockerell) |
| floodwater mosquito | Aedes sticticus (Meigen) | DIPTERA | Culicidae | Aedes | sticticus | (Meigen) |
| Florida carpenter ant | Camponotus atriceps (Fr. Smith) | HYMENOPTERA | Formicidae | Camponotus | atriceps | (Fr. Smith) |
| Florida fern caterpillar | Callopistria floridensis (Guenée) | LEPIDOPTERA | Noctuidae | Callopistria | floridensis | (Guenée) |
| Florida harvester ant | Pogonomyrmex badius (Latreille) | HYMENOPTERA | Formicidae | Pogonomyrmex | badius | (Latreille) |
| Florida red scale | Chrysomphalus aonidum (Linnaeus) | HEMIPTERA | Diaspididae | Chrysomphalus | aonidum | (Linnaeus) |
| Florida wax scale | Ceroplastes floridensis Comstock | HEMIPTERA | Coccidae | Ceroplastes | floridensis | Comstock |
| flower thrips | Frankliniella tritici (Fitch) | THYSANOPTERA | Thripidae | Frankliniella | tritici | (Fitch) |
| fluff louse | Goniocotes gallinae (De Geer) | MALLOPHAGA | Philopteridae | Goniocotes | gallinae | (De Geer) |
| follicle mite | Demodex folliculorum (Simon) | ACARI | Demodicidae | Demodex | folliculorum | (Simon) |
| forage looper | Caenurgina erechtea (Cramer) | LEPIDOPTERA | Noctuidae | Caenurgina | erechtea | (Cramer) |
| Forbes scale | Quadraspidiotus forbesi (Johnson) | HEMIPTERA | Diaspididae | Quadraspidiotus | forbesi | (Johnson) |
| foreign grain beetle | Ahasverus advena (Waltl) | COLEOPTERA | Silvanidae | Ahasverus | advena | (Waltl) |
| forest tent caterpillar | Malacosoma disstria Hübner | LEPIDOPTERA | Lasiocampidae | Malacosoma | disstria | Hübner |
| forest tree termite | Neotermes connexus Snyder | ISOPTERA | Kalotermitidae | Neotermes | connexus | Snyder |
| forktailed bush katydid | Scudderia furcata Brunner von Wattenwyl | ORTHOPTERA | Tettigoniidae | Scudderia | furcata | Brunner von Wattenwyl |
| Formosan subterranean termite | Coptotermes formosanus Shiraki | ISOPTERA | Rhinotermitidae | Coptotermes | formosanus | Shiraki |
| fourbanded leafroller | Argyrotaenia quadrifasciana (Fernald) | LEPIDOPTERA | Tortricidae | Argyrotaenia | quadrifasciana | (Fernald) |
| foureyed spruce bark beetle | Polygraphus rufipennis (Kirby) | COLEOPTERA | Curculionidae, Scolytinae | Polygraphus | rufipennis | (Kirby) |
| fourlined plant bug | Poecilocapsus lineatus (Fabricius) | HEMIPTERA | Miridae | Poecilocapsus | lineatus | (Fabricius) |
| fourspotted spider mite | Tetranychus canadensis (McGregor) | ACARI | Tetranychidae | Tetranychus | canadensis | (McGregor) |
| fourspotted tree cricket | Oecanthus quadripunctatus Beutenmüller | ORTHOPTERA | Gryllidae | Oecanthus | quadripunctatus | Beutenmüller |
| fowl tick | Argas persicus (Oken) | ACARI | Argasidae | Argas | persicus | (Oken) |
| foxglove aphid | Aulacorthum solani (Kaltenbach) | HEMIPTERA | Aphididae | Aulacorthum | solani | (Kaltenbach) |
| frigate bird fly | Olfersia spinifera (Leach) | DIPTERA | Hippoboscidae | Olfersia | spinifera | (Leach) |
| fringed orchid aphid | Cerataphis orchidearum (Westwood) | HEMIPTERA | Aphididae | Cerataphis | orchidearum | (Westwood) |
| frit fly | Oscinella frit (Linnaeus) | DIPTERA | Chloropidae | Oscinella | frit | (Linnaeus) |
| fruittree leafroller | Archips argyrospila (Walker) | LEPIDOPTERA | Tortricidae | Archips | argyrospila | (Walker) |
| Fuller rose beetle | Asynonychus godmanni Crotch | COLEOPTERA | Curculionidae | Asynonychus | godmanni | Crotch |
| furniture beetle | Anobium punctatum (De Geer) | COLEOPTERA | Anobiidae | Anobium | punctatum | (De Geer) |
| furniture carpet beetle | Anthrenus flavipes LeConte | COLEOPTERA | Dermestidae | Anthrenus | flavipes | LeConte |
| G |
| gallmaking maple borer | Xylotrechus aceris Fisher | COLEOPTERA | Cerambycidae | Xylotrechus | aceris | Fisher |
| garden fleahopper | Halticus bractatus (Say) | HEMIPTERA | Miridae | Halticus | bractatus | (Say) |
| garden millipede | Oxidus gracilis Koch | POLYDESMIDA | Paradoxoxomatidae | Oxidus | gracilis | Koch |
| garden springtail | Bourletiella hortensis (Fitch) | COLLEMBOLA | Bourletiellidae | Bourletiella | hortensis | (Fitch) |
| garden symphylan | Scutigerella immaculata (Newport) | SYMPHYLA | Scutigerellidae | Scutigerella | immaculata | (Newport) |
| garden webworm | Achyra rantalis (Guenée) | LEPIDOPTERA | Crambidae | Achyra | rantalis | (Guenée) |
| gardenia bud mite | Colomerus gardeniella (Keifer) | ACARI | Eriophyidae | Colomerus | gardeniella | (Keifer) |
| genista caterpillar | Uresiphita reversalis (Guenée) | LEPIDOPTERA | Crambidae | Uresiphita | reversalis | (Guenée) |
| German cockroach | Blattella germanica (Linnaeus) | BLATTODEA | Blattellidae | Blattella | germanica | (Linnaeus) |
| German yellowjacket | Vespula germanica (Fabricius) | HYMENOPTERA | Vespidae | Vespula | germanica | (Fabricius) |
| German yellowjacket | Vespula germanica (Fabricius) | HYMENOPTERA | Vespidae | Vespula | germanica | (Fabricius) |
| giant African snail | Achatina fulica Bowdich | STYLOMMATOPHORA | Achatinidae | Achatina | fulica | Bowdich |
| giant bark aphid | Longistigma caryae (Harris) | HEMIPTERA | Aphididae | Longistigma | caryae | (Harris) |
| giant Hawaiian dragonfly | Anax strenuus Hagen | ODONATA | Aeshnidae | Anax | strenuus | Hagen |
| giant palm borer | Dinapate wrighti Horn | COLEOPTERA | Brostrichidae | Dinapate | wrighti | Horn |
| giant palm borer | Dinapate wrightii Horn | COLEOPTERA | Bostrichidae | Dinapate | wrightii | Horn |
| giant stag beetle | Lucanus elaphus Fabricius | COLEOPTERA | Lucanidae | Lucanus | elaphus | Fabricius |
| giant water bug | Lethocerus americanus (Leidy) | HEMIPTERA | Belostomatidae | Lethocerus | americanus | (Leidy) |
| Giffard whitefly | Bemisia giffardi (Kotinsky) | HEMIPTERA | Aleyrodidae | Bemisia | giffardi | (Kotinsky) |
| ginger maggot | Eumerus figurans Walker | DIPTERA | Syrphidae | Eumerus | figurans | Walker |
| gladiolus thrips | Thrips simplex (Morison) | THYSANOPTERA | Thripidae | Thrips | simplex | (Morison) |
| glassy cutworm | Apamea devastator (Brace) | LEPIDOPTERA | Noctuidae | Apamea | devastator | (Brace) |
| glassy-winged sharpshooter | Homalodisca vitripennis (Germar) | HEMIPTERA | Cicadellidae | Homalodisca | vitripennis | (Germar) |
| globose scale | Sphaerolecanium prunastri (Fonscolombe) | HEMIPTERA | Coccidae | Sphaerolecanium | prunastri | (Fonscolombe) |
| globular spider beetle | Trigonogenius globulum Solier | COLEOPTERA | Ptinidae | Trigonogenius | globulum | Solier |
| gloomy scale | Melanaspis tenebricosa (Comstock) | HEMIPTERA | Diaspididae | Melanaspis | tenebricosa | (Comstock) |
| Glover scale | Lepidosaphes gloverii (Packard) | HEMIPTERA | Diaspididae | Lepidosaphes | gloverii | (Packard) |
| goat biting louse | Bovicola caprae (Gurlt) | MALLOPHAGA | Trichodectidae | Bovicola | caprae | (Gurlt) |
| goat follicle mite | Demodex caprae Railliet | ACARI | Demodicidae | Demodex | caprae | Railliet |
| goat sucking louse | Linognathus stenopsis (Burmeister) | ANOPLURA | Linognathidae | Linognathus | stenopsis | (Burmeister) |
| golden buprestid | Buprestis aurulenta Linnaeus | COLEOPTERA | Buprestidae | Buprestis | aurulenta | Linnaeus |
| golden cricket wasp | Liris aurulentus (Fabricius) | HYMENOPTERA | Sphecidae | Liris | aurulentus | (Fabricius) |
| golden oak scale | Asterolecanium variolosum (Ratzeburg) | HEMIPTERA | Asterolecaniidae | Asterolecanium | variolosum | (Ratzeburg) |
| golden paper wasp | Polistes aurifer Saussure | HYMENOPTERA | Vespidae | Polistes | aurifer | Saussure |
| golden spider beetle | Niptus hololeucus (Faldermann) | COLEOPTERA | Ptinidae | Niptus | hololeucus | (Faldermann) |
| golden tortoise beetle | Metriona bicolor (Fabricius) | COLEOPTERA | Chrysomelidae | Metriona | bicolor | (Fabricius) |
| goldeneyed lacewing | Chrysopa oculata Say | NEUROPTERA | Chrysopidae | Chrysopa | oculata | Say |
| goldenglow aphid | Dactynotus rudbeckiae (Fitch) | HEMIPTERA | Aphididae | Dactynotus | rudbeckiae | (Fitch) |
| goldenheaded weevil | Compasus auricephalus (Say) | COLEOPTERA | Curculionidae | Compasus | auricephalus | (Say) |
| goose body louse | Trinoton anserinum (Fabricius) | MALLOPHAGA | Menoponidae | Trinoton | anserinum | (Fabricius) |
| gooseberry fruitworm | Zophodia convolutella (Hübner) | LEPIDOPTERA | Pyralidae | Zophodia | convolutella | (Hübner) |
| gooseberry witchbroom aphid | Kakimia houghtonensis (Troop) | HEMIPTERA | Aphididae | Kakimia | houghtonensis | (Troop) |
| gophertortoise tick | Amblyomma tuberculatum Marx | ACARI | Ixodidae | Amblyomma | tuberculatum | Marx |
| gorse seed weevil | Apion ulicis (Förster) | COLEOPTERA | Curculionidae | Apion | ulicis | (Förster) |
| grain mite | Acarus siro Linnaeus | ACARI | Acaridae | Acarus | siro | Linnaeus |
| grain rust mite | Abacarus hystrix (Nalepa) | ACARI | Eriophyidae | Abacarus | hystrix | (Nalepa) |
| grain thrips | Limothrips cerealium (Haliday) | THYSANOPTERA | Thripidae | Limothrips | cerealium | (Haliday) |
| granary weevil | Sitophilus granarius (Linnaeus) | COLEOPTERA | Curculionidae | Sitophilus | granarius | (Linnaeus) |
| granulate ambrosia beetle | Xylosandrus crassiusculus (Motschulsky) | COLEOPTERA | Curculionidae, Scolytinae | Xylosandrus | crassiusculus | (Motschulsky) |
| granulate cutworm | Agrotis subterranea (Fabricius) | LEPIDOPTERA | Noctuidae | Agrotis | subterranea | (Fabricius) |
| grape berry moth | Endopiza viteana Clemens | LEPIDOPTERA | Tortricidae | Endopiza | viteana | Clemens |
| grape blossom midge | Contarinia johnsoni Felt | DIPTERA | Cecidomyiidae | Contarinia | johnsoni | Felt |
| grape cane gallmaker | Ampeloglypter sesostris (LeConte) | COLEOPTERA | Curculionidae | Ampeloglypter | sesostris | (LeConte) |
| grape colaspis | Colaspis brunnea (Fabricius) | COLEOPTERA | Chrysomelidae | Colaspis | brunnea | (Fabricius) |
| grape curculio | Craponius inaequalis (Say) | COLEOPTERA | Curculionidae | Craponius | inaequalis | (Say) |
| grape erineum mite | Colomerus vitis (Pagenstecher) | ACARI | Eriophyidae | Colomerus | vitis | (Pagenstecher) |
| grape flea beetle | Altica chalybea Illiger | COLEOPTERA | Chrysomelidae | Altica | chalybea | Illiger |
| grape leaffolder | Desmia funeralis (Hübner) | LEPIDOPTERA | Crambidae | Desmia | funeralis | (Hübner) |
| grape mealybug | Pseudococcus maritimus (Ehrhorn) | HEMIPTERA | Pseudococcidae | Pseudococcus | maritimus | (Ehrhorn) |
| grape phylloxera | Daktulosphaira vitifoliae (Fitch) | HEMIPTERA | Phylloxeridae | Daktulosphaira | vitifoliae | (Fitch) |
| grape plume moth | Pterophorus periscelidactylus Fitch | LEPIDOPTERA | Pterophoridae | Pterophorus | periscelidactylus | Fitch |
| grape root borer | Vitacea polistiformis (Harris) | LEPIDOPTERA | Sesiidae | Vitacea | polistiformis | (Harris) |
| grape rootworm | Fidia viticida Walsh | COLEOPTERA | Chrysomelidae | Fidia | viticida | Walsh |
| grape sawfly | Erythraspides vitis (Harris) | HYMENOPTERA | Tenthredinidae | Erythraspides | vitis | (Harris) |
| grape scale | Diaspidiotus uvae (Comstock) | HEMIPTERA | Diaspididae | Diaspidiotus | uvae | (Comstock) |
| grape seed chalcid | Evoxysoma vitis (Saunders) | HYMENOPTERA | Eurytomidae | Evoxysoma | vitis | (Saunders) |
| grape thrips | Drepanothrips reuteri Uzel | THYSANOPTERA | Thripidae | Drepanothrips | reuteri | Uzel |
| grape trunk borer | Clytoleptus albofasciatus (Laporte & Gory) | COLEOPTERA | Cerambycidae | Clytoleptus | albofasciatus | (Laporte & Gory) |
| grape whitefly | Trialeurodes vittata (Quaintance) | HEMIPTERA | Aleyrodidae | Trialeurodes | vittata | (Quaintance) |
| grapeleaf skeletonizer | Harrisina americana (Guerin) | LEPIDOPTERA | Zygaenidae | Harrisina | americana | (Guerin) |
| grapevine aphid | Aphis illinoisensis Shimer | HEMIPTERA | Aphididae | Aphis | illinoisensis | Shimer |
| grapevine looper | Eulithis diversilineata (Hübner) | LEPIDOPTERA | Geometridae | Eulithis | diversilineata | (Hübner) |
| grass fleahopper | Halticus chrysolepis Kirkaldy | HEMIPTERA | Miridae | Halticus | chrysolepis | Kirkaldy |
| grass mite | Siteroptes graminum (Reuter) | ACARI | Siteroptidae | Siteroptes | graminum | (Reuter) |
| grass sawfly | Pachynematus extensicornis (Norton) | HYMENOPTERA | Tenthredinidae | Pachynematus | extensicornis | (Norton) |
| grass scolytid | Hypothenemus pubescens Hopkins | COLEOPTERA | Curculionidae | Hypothenemus | pubescens | Hopkins |
| grass sharpshooter | Draeculacephala minerva Ball | HEMIPTERA | Cicadellidae | Draeculacephala | minerva | Ball |
| grass sheathminer | Cerodontha dorsalis (Loew) | DIPTERA | Agromyzidae | Cerodontha | dorsalis | (Loew) |
| grass thrips | Anaphothrips obscurus (Müller) | THYSANOPTERA | Thripidae | Anaphothrips | obscurus | (Müller) |
| grass webworm | Herpetogramma licarsisalis (Walker) | LEPIDOPTERA | Crambidae | Herpetogramma | licarsisalis | (Walker) |
| grasshopper bee fly | Systoechus vulgaris Loew | DIPTERA | Bombyliidae | Systoechus | vulgaris | Loew |
| grasshopper maggots | Blaesoxipha spp. | DIPTERA | Sarcophagidae | Blaesoxipha | spp. | |
| gray garden slug | Agriolimax reticulatus (Müller) | STYLOMMATOPHORA | Agriolimacidae | Agriolimax | reticulatus | (Müller) |
| gray lawn leafhopper | Exitianus exitiosus (Uhler) | HEMIPTERA | Cicadellidae | Exitianus | exitiosus | (Uhler) |
| gray pineapple mealybug | Dysmicoccus neobrevipes Beardsley | HEMIPTERA | Pseudococcidae | Dysmicoccus | neobrevipes | Beardsley |
| gray sugarcane mealybug | Dysmicoccus boninsis (Kuwana) | HEMIPTERA | Pseudococcidae | Dysmicoccus | boninsis | (Kuwana) |
| gray sunflower seed weevil | Smicronyx sordidus LeConte | COLEOPTERA | Curculionidae | Smicronyx | sordidus | LeConte |
| gray willow leaf beetle | Pyrrhalta decora decora (Say) | COLEOPTERA | Chrysomelidae | Pyrrhalta | decora decora | (Say) |
| graybanded leafroller | Argyrotaenia mariana (Fernald) | LEPIDOPTERA | Tortricidae | Argyrotaenia | mariana | (Fernald) |
| great ash sphinx | Sphinx chersis (Hübner) | LEPIDOPTERA | Sphingidae | Sphinx | chersis | (Hübner) |
| Great Basin wireworm | Ctenicera pruinina (Horn) | COLEOPTERA | Elateridae | Ctenicera | pruinina | (Horn) |
| greater wax moth | Galleria mellonella (Linnaeus) | LEPIDOPTERA | Pyralidae | Galleria | mellonella | (Linnaeus) |
| greedy scale | Hemiberlesia rapax (Comstock) | HEMIPTERA | Diaspididae | Hemiberlesia | rapax | (Comstock) |
| green budworm | Hedya nubiferana (Haworth) | LEPIDOPTERA | Tortricidae | Hedya | nubiferana | (Haworth) |
| green cloverworm | Hypena scabra (Fabricius) | LEPIDOPTERA | Noctuidae | Hypena | scabra | (Fabricius) |
| green fruitworm | Lithophane antennata (Walker) | LEPIDOPTERA | Noctuidae | Lithophane | antennata | (Walker) |
| green garden looper | Chrysodeixis eriosoma (Doubleday) | LEPIDOPTERA | Noctuidae | Chrysodeixis | eriosoma | (Doubleday) |
| green June beetle | Cotinis nitida (Linnaeus) | COLEOPTERA | Scarabaeidae | Cotinis | nitida | (Linnaeus) |
| green peach aphid | Myzus persicae (Sulzer) | HEMIPTERA | Aphididae | Myzus | persicae | (Sulzer) |
| green rose chafer | Dichelonyx backi (Kirby) | COLEOPTERA | Scarabaeidae | Dichelonyx | backi | (Kirby) |
| green scale | Coccus viridis (Green) | HEMIPTERA | Coccidae | Coccus | viridis | (Green) |
| green shield scale | Pulvinaria psidii Maskell | HEMIPTERA | Coccidae | Pulvinaria | psidii | Maskell |
| green sphinx | Tinostoma smaragditis (Meyrick) | LEPIDOPTERA | Sphingidae | Tinostoma | smaragditis | (Meyrick) |
| green spruce aphid | Cinara fornacula Hottes | HEMIPTERA | Aphididae | Cinara | fornacula | Hottes |
| green stink bug | Acrosternum hilare (Say) | HEMIPTERA | Pentatomidae | Acrosternum | hilare | (Say) |
| greenbug | Schizaphis graminum (Rondani) | HEMIPTERA | Aphididae | Schizaphis | graminum | (Rondani) |
| greenheaded spruce sawfly | Pikonema dimmockii (Cresson) | HYMENOPTERA | Tenthredinidae | Pikonema | dimmockii | (Cresson) |
| greenhouse orthezia | Orthezia insignis Browne | HEMIPTERA | Ortheziidae | Orthezia | insignis | Browne |
| greenhouse slug | Milax gagates (Draparnaud) | STYLOMMATOPHORA | Limacidae | Milax | gagates | (Draparnaud) |
| greenhouse stone cricket | Tachycines asynamorus Adelung | ORTHOPTERA | Gryllacrididae | Tachycines | asynamorus | Adelung |
| greenhouse thrips | Heliothrips haemorrhoidalis (Bouché) | THYSANOPTERA | Thripidae | Heliothrips | haemorrhoidalis | (Bouché) |
| greenhouse whitefly | Trialeurodes vaporariorum (Westwood) | HEMIPTERA | Aleyrodidae | Trialeurodes | vaporariorum | (Westwood) |
| greenstriped grasshopper | Chortophaga viridifasciata (De Geer) | ORTHOPTERA | Acrididae | Chortophaga | viridifasciata | (De Geer) |
| greenstriped mapleworm | Dryocampa rubicunda (Fabricius) | LEPIDOPTERA | Saturniidae | Dryocampa | rubicunda | (Fabricius) |
| gregarious oak leafminer | Cameraria cincinnatiella (Chambers) | LEPIDOPTERA | Gracillariidae | Cameraria | cincinnatiella | (Chambers) |
| ground mealybug | Rhizoecus falcifer Künckel d'Herculais | HEMIPTERA | Pseudococcidae | Rhizoecus | falcifer Künckel | d'Herculais |
| guar midge | Contarinia texana (Felt) | DIPTERA | Cecidomyiidae | Contarinia | texana | (Felt) |
| Guatemalan potato moth | Tecia solanivora (Povolny) | LEPIDOPTERA | Gelechiidae | Tecia | solanivora | (Povolny) |
| Guinea ant | Tetramorium bicarinatum (Nylander) | HYMENOPTERA | Formicidae | Tetramorium | bicarinatum | (Nylander) |
| Guinea feather louse | Goniodes numidae Möjberg | MALLOPHAGA | Philopteridae | Goniodes | numidae | Möjberg |
| Gulf Coast tick | Amblyomma maculatum Koch | ACARI | Ixodidae | Amblyomma | maculatum | Koch |
| Gulf wireworm | Conoderus amplicollis (Gyllenhal) | COLEOPTERA | Elateridae | Conoderus | amplicollis | (Gyllenhal) |
| gypsy ant | Aphaenogaster araneoides Emery | HYMENOPTERA | Formicidae | Aphaenogaster | araneoides | Emery |
| gypsy moth | Lymantria dispar (Linnaeus) | LEPIDOPTERA | Lymantriidae | Lymantria | dispar | (Linnaeus) |
| H |
| hackberry engraver | Scolytus muticus Say | COLEOPTERA | Curculionidae | Scolytus | muticus | Say |
| hackberry lace bug | Corythucha celtidis Osborn & Drake | HEMIPTERA | Tingidae | Corythucha | celtidis | Osborn & Drake |
| hackberry nipplegall maker | Pachypsylla celtidismamma (Fletcher) | HEMIPTERA | Psyllidae | Pachypsylla | celtidismamma | (Fletcher) |
| hag moth | Phobetron pithecium (J.E.Smith) | LEPIDOPTERA | Limacodidae | Phobetron | pithecium | (J.E.Smith) |
| hairy chinch bug | Blissus leucopterus hirtus Montandon | HEMIPTERA | Lygaeidae | Blissus | leucopterus hirtus | Montandon |
| hairy fungus beetle | Typhaea stercorea (Linnaeus) | COLEOPTERA | Mycetophagidae | Typhaea | stercorea | (Linnaeus) |
| hairy maggot blow fly | Chrysomya rufifacies (Macquart) | DIPTERA | Calliphoridae | Chrysomya | rufifacies | (Macquart) |
| hairy rove beetle | Creophilus maxillosus (Linnaeus) | COLEOPTERA | Staphylinidae | Creophilus | maxillosus | (Linnaeus) |
| hairy spider beetle | Ptinus villiger (Reitter) | COLEOPTERA | Ptinidae | Ptinus | villiger | (Reitter) |
| half-black bumble bee | Bombus vagans (Smith) | Hymenoptera | Apidae | Bombus | vagans | (Smith) |
| Hall scale | Nilotaspis halli (Green) | HEMIPTERA | Diaspididae | Nilotaspis | halli | (Green) |
| hard maple budminer | Obrussa ochrefasciella (Chambers) | LEPIDOPTERA | Nepticulidae | Obrussa | ochrefasciella | (Chambers) |
| harlequin bug | Murgantia histrionica (Hahn) | HEMIPTERA | Pentatomidae | Murgantia | histrionica | (Hahn) |
| harlequin cockroach | Neostylopyga rhombifolia (Stoll) | BLATTODEA | Blattidae | Neostylopyga | rhombifolia | (Stoll) |
| hau leafminer | Philodoria hauicola (Swezey) | LEPIDOPTERA | Gracillariidae | Philodoria | hauicola | (Swezey) |
| Hawaiian antlion | Eidoleon wilsoni (McLachlan) | NEUROPTERA | Myrmeleontidae | Eidoleon | wilsoni | (McLachlan) |
| Hawaiian beet webworm | Spoladea recurvalis (Fabricius) | LEPIDOPTERA | Crambidae | Spoladea | recurvalis | (Fabricius) |
| Hawaiian bud moth | Helicoverpa hawaiiensis (Quaintance & Brues) | LEPIDOPTERA | Noctuidae | Helicoverpa | hawaiiensis | (Quaintance & Brues) |
| Hawaiian carpenter ant | Camponotus variegatus (F. Smith) | HYMENOPTERA | Formicidae | Camponotus | variegatus | (F. Smith) |
| Hawaiian flower thrips | Thrips hawaiiensis (Morgan) | THYSANOPTERA | Thripidae | Thrips | hawaiiensis | (Morgan) |
| Hawaiian grass thrips | Anaphothrips swezeyi Moulton | THYSANOPTERA | Thripidae | Anaphothrips | swezeyi | Moulton |
| Hawaiian pelagic water strider | Halobates hawaiiensis Usinger | HEMIPTERA | Gerridae | Halobates | hawaiiensis | Usinger |
| Hawaiian sphinx | Hyles calida (Butler) | LEPIDOPTERA | Sphingidae | Hyles | calida | (Butler) |
| hawthorn lace bug | Corythucha cydoniae (Fitch) | HEMIPTERA | Tingidae | Corythucha | cydoniae | (Fitch) |
| hazelnut weevil | Curculio obtusus (Blanchard) | COLEOPTERA | Curculionidae | Curculio | obtusus | (Blanchard) |
| head louse | Pediculus humanus capitis De Geer | ANOPLURA | Pediculidae | Pediculus | humanus capitis | De Geer |
| heath spittlebug | Clastoptera saintcyri Provancher | HEMIPTERA | Cercopidae | Clastoptera | saintcyri | Provancher |
| hemispherical scale | Saissetia coffeae (Walker) | HEMIPTERA | Coccidae | Saissetia | coffeae | (Walker) |
| hemlock borer | Melanophila fulvoguttata (Harris) | COLEOPTERA | Buprestidae | Melanophila | fulvoguttata | (Harris) |
| hemlock engraver | Scolytus tsugae (Swaine) | COLEOPTERA | Curculionidae, Scolytinae | Scolytus | tsugae | (Swaine) |
| hemlock looper | Lambdina fiscellaria fiscellaria (Guenée) | LEPIDOPTERA | Geometridae | Lambdina | fiscellaria fiscellaria | (Guenée) |
| hemlock sawfly | Neodiprion taedae tsugae Ross | HYMENOPTERA | Diprionidae | Neodiprion | taedae tsugae | Ross |
| hemlock scale | Abgrallaspis ithacae (Ferris) | HEMIPTERA | Diaspididae | Abgrallaspis | ithacae | (Ferris) |
| hemlock woolly adelgid | Adelges tsugae Annand | HEMIPTERA | Adelgidae | Adelges | tsugae | Annand |
| Hessian fly | Mayetiola destructor (Say) | DIPTERA | Cecidomyiidae | Mayetiola | destructor | (Say) |
| hibiscus leafminer | Philodoria hibiscella (Swezey) | LEPIDOPTERA | Gracillariidae | Philodoria | hibiscella | (Swezey) |
| hibiscus mealybug | Nipaecoccus viridis (Newstead) | HEMIPTERA | Pseudococcidae | Nipaecoccus | viridis | (Newstead) |
| hibiscus whitefly | Singhius hibisci (Kotinsky) | HEMIPTERA | Aleyrodidae | Singhius | hibisci | (Kotinsky) |
| hickory bark beetle | Scolytus quadrispinosus Say | COLEOPTERA | Curculionidae | Scolytus | quadrispinosus | Say |
| hickory leafroIler | Argyrotaenia juglandana (Fernald) | LEPIDOPTERA | Tortricidae | Argyrotaenia | juglandana | (Fernald) |
| hickory plant bug | Lygocoris caryae (Knight) | HEMIPTERA | Miridae | Lygocoris | caryae | (Knight) |
| hickory shuckworm | Cydia caryana (Fitch) | LEPIDOPTERA | Tortricidae | Cydia | caryana | (Fitch) |
| hickory tussock moth | Lophocampa caryae Harris | LEPIDOPTERA | Arctiidae | Lophocampa | caryae | Harris |
| hide beetle | Dermestes maculatus De Geer | COLEOPTERA | Dermestidae | Dermestes | maculatus | De Geer |
| High Plains grasshopper | Dissosteira longipennis (Thomas) | ORTHOPTERA | Acrididae | Dissosteira | longipennis | (Thomas) |
| hobo spider | Tegenaria agrestis (Walckenaer) | ARANEAE | Agelenidae | Tegenaria | agrestis | (Walckenaer) |
| hog follicle mite | Demodex phylloides Csokor | ACARI | Demodicidae | Demodex | phylloides | Csokor |
| hog louse | Haematopinus suis (Linnaeus) | ANOPLURA | Haematopinidae | Haematopinus | suis | (Linnaeus) |
| holly leafminer | Phytomyza ilicis Curtis | DIPTERA | Agromyzidae | Phytomyza | ilicis | Curtis |
| holly scale | Dynaspidiotus britannicus (Newstead) | HEMIPTERA | Diaspididae | Dynaspidiotus | britannicus | (Newstead) |
| hollyhock plant bug | Brooksetta althaeae (Hussey) | HEMIPTERA | Miridae | Brooksetta | althaeae | (Hussey) |
| hollyhock weevil | Apion longirostre Olivier | COLEOPTERA | Curculionidae | Apion | longirostre | Olivier |
| honey bee | Apis mellifera Linnaeus | HYMENOPTERA | Apidae | Apis | mellifera | Linnaeus |
| honey bee mite | Acarapis woodi (Rennie) | ACARI | Tarsonemidae | Acarapis | woodi | (Rennie) |
| honeylocust plant bug | Diaphnocoris chlorionis (Say) | HEMIPTERA | Miridae | Diaphnocoris | chlorionis | (Say) |
| honeylocust spider mite | Platytetranychus multidigituli (Ewing) | ACARI | Tetranychidae | Platytetranychus | multidigituli | (Ewing) |
| honeysuckle leafminer | Swezeyula lonicerae Zimmerman & Bradley | LEPIDOPTERA | Elachistidae | Swezeyula | lonicerae | Zimmerman & Bradley |
| honeysuckle sawfly | Zaraea inflata Norton | HYMENOPTERA | Cimbicidae | Zaraea | inflata | Norton |
| hop aphid | Phorodon humuli (Schrank) | HEMIPTERA | Aphididae | Phorodon | humuli | (Schrank) |
| hop flea beetle | Psylliodes punctulata Melsheimer | COLEOPTERA | Chrysomelidae | Psylliodes | punctulata | Melsheimer |
| hop looper | Hypena humuli Harris | LEPIDOPTERA | Noctuidae | Hypena | humuli | Harris |
| hop plant bug | Taedia hawleyi (Knight) | HEMIPTERA | Miridae | Taedia | hawleyi | (Knight) |
| horn fly | Haematobia irritans (Linnaeus) | DIPTERA | Muscidae | Haematobia | irritans | (Linnaeus) |
| horned passalus | Odontotaenius disjunctus (Illiger) | COLEOPTERA | Passalidae | Odontotaenius | disjunctus | (Illiger) |
| horned squash bug | Anasa armigera (Say) | HEMIPTERA | Coreidae | Anasa | armigera | (Say) |
| hornet moth | Sesia apiformis (Clerck) | LEPIDOPTERA | Sesiidae | Sesia | apiformis | (Clerck) |
| horse biting louse | Bovicola equi (Denny) | MALLOPHAGA | Trichodectidae | Bovicola | equi | (Denny) |
| horse bot fly | Gasterophilus intestinalis (De Geer) | DIPTERA | Oestridae | Gasterophilus | intestinalis | (De Geer) |
| horse follicle mite | Demodex equi Railliet | ACARI | Demodicidae | Demodex | equi | Railliet |
| horse sucking louse | Haematopinus asini (Linnaeus) | ANOPLURA | Haematopinidae | Haematopinus | asini | (Linnaeus) |
| horseradish flea beetle | Phyllotreta armoraciae (Koch) | COLEOPTERA | Chrysomelidae | Phyllotreta | armoraciae | (Koch) |
| house centipede | Scutigera coleoptrata (Linnaeus) | SCUTIGEROMORPHA | Scutigeridae | Scutigera | coleoptrata | (Linnaeus) |
| house cricket | Acheta domesticus (Linnaeus) | ORTHOPTERA | Gryllidae | Acheta | domesticus | (Linnaeus) |
| house fly | Musca domestica Linnaeus | DIPTERA | Muscidae | Musca | domestica | Linnaeus |
| house mite | Glycyphagus domesticus (DeGeer) | ACARI | Glycyphagidae | Glycyphagus | domesticus | (DeGeer) |
| house mouse mite | Liponyssoides sanguineus (Hirst) | ACARI | Macronyssidae | Liponyssoides | sanguineus | (Hirst) |
| household casebearer | Phereoeca uterella Walsingham | LEPIDOPTERA | Tineidae | Phereoeca | uterella | Walsingham |
| huisache girdler | Oncideres pustulatus LeConte | COLEOPTERA | Cerambycidae | Oncideres | pustulatus | LeConte |
| huisache girdler | Oncideres pustulatus LeConte | COLEOPTERA | Cerambycidae | Oncideres | pustulatus | LeConte |
| human flea | Pulex irritans (Linnaeus) | SIPHONAPTERA | Pulicidae | Pulex | irritans | (Linnaeus) |
| hunting billbug | Sphenophorus venatus vestitus Chittenden | COLEOPTERA | Curculionidae | Sphenophorus | venatus vestitus | Chittenden |
| hyaline grass bug | Liorhyssus hyalinus (Fabricius) | HEMIPTERA | Rhopalidae | Liorhyssus | hyalinus | (Fabricius) |
| I |
| ilima leafminer | Philodoria marginestrigata (Walsingham) | LEPIDOPTERA | Gracillariidae | Philodoria | marginestrigata | (Walsingham) |
| ilima moth | Amyna natalis (Walker) | LEPIDOPTERA | Noctuidae | Amyna | natalis | (Walker) |
| imbricated snout beetle | Epicaerus imbricatus (Say) | COLEOPTERA | Curculionidae | Epicaerus | imbricatus | (Say) |
| immigrant acacia weevil | Orthorhinus klugi Boheman | COLEOPTERA | Curculionidae | Orthorhinus | klugi | Boheman |
| imperial moth | Eacles imperialis (Drury) | LEPIDOPTERA | Saturniidae | Eacles | imperialis | (Drury) |
| imported cabbageworm | Pieris rapae (Linnaeus) | LEPIDOPTERA | Pieridae | Pieris | rapae | (Linnaeus) |
| imported crucifer weevil | Baris lepidii Germar | COLEOPTERA | Curculionidae | Baris | lepidii | Germar |
| imported currantworm | Nematus ribesii (Scopoli) | HYMENOPTERA | Tenthredinidae | Nematus | ribesii | (Scopoli) |
| imported longhorned weevil | Calomycterus setarius Roelofs | COLEOPTERA | Curculionidae | Calomycterus | setarius | Roelofs |
| imported willow leaf beetle | Plagiodera versicolora (Laicharting) | COLEOPTERA | Chrysomelidae | Plagiodera | versicolora | (Laicharting) |
| incense-cedar wasp | Syntexis libocedrii Rohwer | HYMENOPTERA | Anaxyelidae | Syntexis | libocedrii | Rohwer |
| Indianmeal moth | Plodia interpunctella (Hübner) | LEPIDOPTERA | Pyralidae | Plodia | interpunctella | (Hübner) |
| indiscriminate cuckoo bumble bee | Bombus insularis (Smith) | Hymenoptera | Apidae | Bombus | insularis | (Smith) |
| inornate scale | Aonidiella inornata McKenzie | HEMIPTERA | Diaspididae | Aonidiella | inornata | McKenzie |
| insidious flower bug | Orius insidiosus (Say) | HEMIPTERA | Anthocoridae | Orius | insidiosus | (Say) |
| introduced basswood thrips | Thrips calcaratus Uzel | THYSANOPTERA | Thripidae | Thrips | calcaratus | Uzel |
| introduced basswood thrips | Thrips calcaratus Uzel | THYSANOPTERA | Thripidae | Thrips | calcaratus | Uzel |
| introduced pine sawfly | Diprion similis (Hartig) | HYMENOPTERA | Diprionidae | Diprion | similis | (Hartig) |
| io moth | Automeris io (Fabricius) | LEPIDOPTERA | Saturniidae | Automeris | io | (Fabricius) |
| iris borer | Macronoctua onusta Grote | LEPIDOPTERA | Noctuidae | Macronoctua | onusta | Grote |
| iris thrips | Iridothrips iridis (Watson) | THYSANOPTERA | Thripidae | Iridothrips | iridis | (Watson) |
| iris weevil | Mononychus vulpeculus (Fabricius) | COLEOPTERA | Curculionidae | Mononychus | vulpeculus | (Fabricius) |
| Italian pear scale | Epidiaspis leperii (Signoret) | HEMIPTERA | Diaspididae | Epidiaspis | leperii | (Signoret) |
| itch mite | Sarcoptes scabiei (De Geer) | ACARI | Sarcoptidae | Sarcoptes | scabiei | (De Geer) |
| ivy aphid | Aphis hederae Kaltenbach | HEMIPTERA | Aphididae | Aphis | hederae | Kaltenbach |
| J |
| jack pine budworm | Choristoneura pinus Freeman | LEPIDOPTERA | Tortricidae | Choristoneura | pinus | Freeman |
| jack pine sawfly | Neodiprion pratti banksianae Rohwer | HYMENOPTERA | Diprionidae | Neodiprion | pratti banksianae | Rohwer |
| Japanese beetle | Popillia japonica Newman | COLEOPTERA | Scarabaeidae | Popillia | japonica | Newman |
| Japanese broadwinged katydid | Holochlora japonica Brunner von Wattenwyl | ORTHOPTERA | Tettigoniidae | Holochlora | japonica | Brunner von Wattenwyl |
| Japanese grasshopper | Oxya japonica (Thunberg) | ORTHOPTERA | Acrididae | Oxya | japonica | (Thunberg) |
| Jeffrey pine beetle | Dendroctonus jeffreyi Hopkins | COLEOPTERA | Curculionidae | Dendroctonus | jeffreyi | Hopkins |
| Jerusalem cricket | Stenopelmatus fuscus Haldeman | ORTHOPTERA | Stenopelmatidae | Stenopelmatus | fuscus | Haldeman |
| juniper midge | Contarinia juniperina Felt | DIPTERA | Cecidomyiidae | Contarinia | juniperina | Felt |
| juniper scale | Carulaspis juniperi (Bouché) | HEMIPTERA | Diaspididae | Carulaspis | juniperi | (Bouché) |
| juniper tip midge | Oligotrophus betheli Felt | DIPTERA | Cecidomyiidae | Oligotrophus | betheli | Felt |
| juniper webworm | Dichomeris marginella (Fabricius) | LEPIDOPTERA | Gelechiidae | Dichomeris | marginella | (Fabricius) |
| K |
| Kamehameha butterfly | Vanessa tameamea Eschscholtz | LEPIDOPTERA | Nymphalidae | Vanessa | tameamea | Eschscholtz |
| keyhole wasp | Pachodynerus nasidens (Latreille) | HYMENOPTERA | Vespidae | Pachodynerus | nasidens | (Latreille) |
| khapra beetle | Trogoderma granarium Everts | COLEOPTERA | Dermestidae | Trogoderma | granarium | Everts |
| kiawe bean weevil | Algarobius bottimeri Kingsolver | COLEOPTERA | Bruchidae | Algarobius | bottimeri | Kingsolver |
| kiawe flower moth | Ithome concolorella (Chambers) | LEPIDOPTERA | Cosmopterigidae | Ithome | concolorella | (Chambers) |
| kiawe roundheaded borer | Placosternus crinicornis (Chevrolat) | COLEOPTERA | Cerambycidae | Placosternus | crinicornis | (Chevrolat) |
| kiawe scolytid | Hypothenemus birmanus (Eichhoff) | COLEOPTERA | Curculionidae | Hypothenemus | birmanus | (Eichhoff) |
| Kirkaldy whitefly | Dialeurodes kirkaldyi (Kotinsky) | HEMIPTERA | Aleyrodidae | Dialeurodes | kirkaldyi | (Kotinsky) |
| Klamathweed beetle | Chrysolina quadrigemina (Suffrian) | COLEOPTERA | Chrysomelidae | Chrysolina | quadrigemina | (Suffrian) |
| koa bug | Coleotichus blackburniae White | HEMIPTERA | Pentatomidae | Coleotichus | blackburniae | White |
| koa haole seed weevil | Araecerus levipennis Jordan | COLEOPTERA | Anthribidae | Araecerus | levipennis | Jordan |
| koa moth | Scotorythra paludicola (Butler) | LEPIDOPTERA | Geometridae | Scotorythra | paludicola | (Butler) |
| koa seedworm | Cryptophlebia illepida (Butler) | LEPIDOPTERA | Tortricidae | Cryptophlebia | illepida | (Butler) |
| kou leafworm | Ethmia nigroapicella (Saalmüller) | LEPIDOPTERA | Oecophoridae | Ethmia | nigroapicella | (Saalmüller) |
| L |
| Lange metalmark | Apodemia mormo langei Comstock | LEPIDOPTERA | Riodinidae | Apodemia | mormo langei | Comstock |
| lantana cerambycid | Plagiohammus spinipennis Thomson | COLEOPTERA | Cerambycidae | Plagiohammus | spinipennis | Thomson |
| lantana defoliator caterpillar | Hypena strigatus (Fabricius) | LEPIDOPTERA | Noctuidae | Hypena | strigatus | (Fabricius) |
| lantana gall fly | Eutreta xanthochaeta Aldrich | DIPTERA | Tephritidae | Eutreta | xanthochaeta | Aldrich |
| lantana hispid | Uroplata girardi Pic | COLEOPTERA | Chrysomelidae | Uroplata | girardi | Pic |
| lantana lace bug | Teleonemia scrupulosa Stål | HEMIPTERA | Tingidae | Teleonemia | scrupulosa | Stål |
| lantana leaf beetle | Octotoma scabripennis Guérin-Méneville | COLEOPTERA | Chrysomelidae | Octotoma | scabripennis | Guérin-Méneville |
| lantana leafminer | Cremastobombycia lantanella Busck | LEPIDOPTERA | Gracillariidae | Cremastobombycia | lantanella | Busck |
| lantana leaftier | Salbia haemorrhoidalis Guenée | LEPIDOPTERA | Crambidae | Salbia | haemorrhoidalis | Guenée |
| lantana plume moth | Lantanophaga pusillidactyla (Walker) | LEPIDOPTERA | Pterophoridae | Lantanophaga | pusillidactyla | (Walker) |
| lantana seed fly | Ophiomyia lantanae (Froggatt) | DIPTERA | Agromyzidae | Ophiomyia | lantanae | (Froggatt) |
| lantana stick caterpillar | Neogalea sunia (Guenée) | LEPIDOPTERA | Noctuidae | Neogalea | sunia | (Guenée) |
| lappet moth | Phyllodesma americana (Harris) | LEPIDOPTERA | Lasiocampidae | Phyllodesma | americana | (Harris) |
| larch aphid | Cinara laricis (Hartig) | HEMIPTERA | Aphididae | Cinara | laricis | (Hartig) |
| larch casebearer | Coleophora laricella (Hübner) | LEPIDOPTERA | Coleophoridae | Coleophora | laricella | (Hübner) |
| larch sawfly | Pristiphora erichsonii (Hartig) | HYMENOPTERA | Tenthredinidae | Pristiphora | erichsonii | (Hartig) |
| larder beetle | Dermestes lardarius Linnaeus | COLEOPTERA | Dermestidae | Dermestes | lardarius | Linnaeus |
| large aspen tortrix | Choristoneura conflictana (Walker) | LEPIDOPTERA | Tortricidae | Choristoneura | conflictana | (Walker) |
| large bigeyed bug | Geocoris bullatus (Say) | HEMIPTERA | Lygaeidae | Geocoris | bullatus | (Say) |
| large brown spider | Heteropoda venatoria (Linnaeus) | ARANEAE | Sparassidae | Heteropoda | venatoria | (Linnaeus) |
| large chestnut weevil | Curculio caryatrypes (Boheman) | COLEOPTERA | Curculionidae | Curculio | caryatrypes | (Boheman) |
| large chicken louse | Goniodes gigas (Taschenberg) | MALLOPHAGA | Philopteridae | Goniodes | gigas | (Taschenberg) |
| large cottony scale | Pulvinaria mammeae Maskell | HEMIPTERA | Coccidae | Pulvinaria | mammeae | Maskell |
| large duck louse | Trinoton querquedulae (Linnaeus) | MALLOPHAGA | Menoponidae | Trinoton | querquedulae | (Linnaeus) |
| large kissing bug | Triatoma rubrofasciata (De Geer) | HEMIPTERA | Reduviidae | Triatoma | rubrofasciata | (De Geer) |
| large milkweed bug | Oncopeltus fasciatus (Dallas) | HEMIPTERA | Lygaeidae | Oncopeltus | fasciatus | (Dallas) |
| large red slug | Arion ater rufus (Linnaeus) | STYLOMMATOPHORA | Arionidae | Arion | ater rufus | (Linnaeus) |
| large turkey louse | Chelopistes meleagridis (Linnaeus) | MALLOPHAGA | Philopteridae | Chelopistes | meleagridis | (Linnaeus) |
| larger black flour beetle | Cynaeus angustus (LeConte) | COLEOPTERA | Tenebrionidae | Cynaeus | angustus | (LeConte) |
| larger canna leafroller | Calpodes ethlius (Stoll) | LEPIDOPTERA | Hesperiidae | Calpodes | ethlius | (Stoll) |
| larger elm leaf beetle | Monocesta coryli (Say) | COLEOPTERA | Chrysomelidae | Monocesta | coryli | (Say) |
| larger grain borer | Prostephanus truncatus (Horn) | COLEOPTERA | Bostrichidae | Prostephanus | truncatus | (Horn) |
| larger Hawaiian cutworm | Agrotis crinigera (Butler) | LEPIDOPTERA | Noctuidae | Agrotis | crinigera | (Butler) |
| larger lantana butterfly | Tmolus echion (Linnaeus) | LEPIDOPTERA | Lycaenidae | Tmolus | echion | (Linnaeus) |
| larger Mexican pine beetle | Dendroctonus approximatus Dietz | COLEOPTERA | Scolytidnae | Dendroctonus | approximatus | Dietz |
| larger pale trogiid | Trogium pulsatorium (Linnaeus) | PSOCOPTERA | Trogiidae | Trogium | pulsatorium | (Linnaeus) |
| larger shothole borer | Scolytus mali (Bechstein) | COLEOPTERA | Curculionidae | Scolytus | mali | (Bechstein) |
| larger yellow ant | Acanthomyops interjectus (Mayr) | HYMENOPTERA | Formicidae | Acanthomyops | interjectus | (Mayr) |
| larkspur leafminer complex12 | Phytomyza spp. | DIPTERA | Agromyzidae | Phytomyza | spp. | |
| latania scale | Hemiberlesia lataniae (Signoret) | HEMIPTERA | Diaspididae | Hemiberlesia | lataniae | (Signoret) |
| latrine fly | Fannia scalaris (Fabricius) | DIPTERA | Muscidae | Fannia | scalaris | (Fabricius) |
| lawn armyworm | Spodoptera mauritia (Boisduval) | LEPIDOPTERA | Noctuidae | Spodoptera | mauritia | (Boisduval) |
| lawn leafhopper | Deltocephalus hospes Kirkaldy | HEMIPTERA | Cicadellidae | Deltocephalus | hospes | Kirkaldy |
| leadcable borer | Scobicia declivis (LeConte) | COLEOPTERA | Bostrichidae | Scobicia | declivis | (LeConte) |
| leaf crumpler | Acrobasis indigenella (Zeller) | LEPIDOPTERA | Pyralidae | Acrobasis | indigenella | (Zeller) |
| leaffooted bug | Leptoglossus phyllopus (Linnaeus) | HEMIPTERA | Coreidae | Leptoglossus | phyllopus | (Linnaeus) |
| leaffooted pine seed bug | Leptoglossus corculus (Say) | HEMIPTERA | Coreidae | Leptoglossus | corculus | (Say) |
| leafhopper assassin bug | Zelus renardii Kolenati | HEMIPTERA | Reduviidae | Zelus | renardii | Kolenati |
| leek moth | Acrolepiopsis assectella (Zeller) | LEPIDOPTERA | Acrolepiidae | Acrolepiopsis | assectella | (Zeller) |
| lemon cuckoo bumble bee | Bombus citrinus (Smith) | Hymenoptera | Apidae | Bombus | citrinus | (Smith) |
| leopard moth | Zeuzera pyrina (Linnaeus) | LEPIDOPTERA | Cossidae | Zeuzera | pyrina | (Linnaeus) |
| lespedeza webworm | Pococera scortealis (Lederer) | LEPIDOPTERA | Pyralidae | Pococera | scortealis | (Lederer) |
| lesser appleworm | Grapholita prunivora (Walsh) | LEPIDOPTERA | Tortricidae | Grapholita | prunivora | (Walsh) |
| lesser brown scorpion | Isometrus maculatus De Geer | SCORPIONES | Buthidae | Isometrus | maculatus | De Geer |
| lesser bud moth | Recurvaria nanella (Denis & Schiffermüller) | LEPIDOPTERA | Gelechiidae | Recurvaria | nanella | (Denis & Schiffermüller) |
| lesser bulb fly | Eumerus tuberculatus Rondani | DIPTERA | Syrphidae | Eumerus | tuberculatus | Rondani |
| lesser canna leafroller | Geshna cannalis (Quaintance) |