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| Common Name | Scientific Name | Order | Family | Genus | Species | Author | notes |
|---|---|---|---|---|---|---|---|
| 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 | Altica ambiens (LeConte) | COLEOPTERA | Chrysomelidae | Altica | 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 | Aceria aloinis (Keifer) | ACARI | Eriophyidae | Aceria | 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 (De Geer) | HYMENOPTERA | Apidae | Bombus | pensylvanicus | (De Geer) | |
| American burying beetle | Nicrophorus americanus Olivier | COLEOPTERA | Silphidae | Nicrophorus | americanus | Olivier | |
| 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 | Pyroglyphidae | 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 serpentine leafminer | Liriomyza trifolii (Burgess) | DIPTERA | Agromyzidae | Liriomyza | trifolii | (Burgess) | |
| American spider beetle | Mezium americanum (Laporte) | COLEOPTERA | Ptinidae | Mezium | americanum | (Laporte) | |
| Angora goat biting louse | Bovicola crassipes (Rudow) | PHTHIRAPTERA | 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 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 oxyacanthae (Schrank) | HEMIPTERA | Aphididae | Rhopalosiphum | oxyacanthae | (Schrank) | |
| 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) | |
| arid land subterranean termite | Reticulitermes tibialis Banks | ISOPTERA | Rhinotermitidae | Reticulitermes | tibialis | Banks | |
| Arizona fivespined ips | Ips lecontei Swaine | COLEOPTERA | Curculionidae | Ips | lecontei | Swaine | |
| army cutworm | Euxoa auxiliaris (Grote) | LEPIDOPTERA | Noctuidae | Euxoa | auxiliaris | (Grote) | |
| armyworm | Mythimna unipuncta (Haworth) | LEPIDOPTERA | Noctuidae | Mythimna | 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 borer* | Podosesia syringae (Harris) | LEPIDOPTERA | Sesiidae | Podosesia | syringae | (Harris) | *Also called lilac borer |
| 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 citrus psyllid | Diaphorina citri Kuwayama | HEMIPTERA | Psyllidae | Diaphorina | citri | Kuwayama | |
| Asian cockroach | Blattella asahinai Mizukubo | BLATTODEA | Blattellidae | Blattella | asahinai | Mizukubo | |
| Asian longhorned beetle | Anoplophora glabripennis (Motschulsky) | COLEOPTERA | Cerambycidae | Anoplophora | glabripennis | (Motschulsky) | |
| Asian needle ant | Pachycondyla chinensis (Emery) | HYMENOPTERA | Formicidae | Pachycondyla | chinensis | (Emery) | |
| 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 seed moth | Stenoma catenifer Walsingham | LEPIDOPTERA | Elachistidae | Stenoma | catenifer | Walsingham | |
| avocado thrips | Scirtothrips perseae Nakahara | THYSANOPTERA | Thripidae | Scirtothrips | perseae | Nakahara | |
| avocado whitefly | Trialeurodes floridensis (Quaintance) | HEMIPTERA | Aleyrodidae | Trialeurodes | floridensis | (Quaintance) | |
| azalea bark scale | Eriococcus azaleae Comstock | HEMIPTERA | Eriococcidae | Eriococcus | 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) | |
| 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 | 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 vitrata (Fabricius) | LEPIDOPTERA | Crambidae | Maruca | vitrata | (Fabricius) | |
| 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 | Chrysomelidae | 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 | Grylloprociphilus imbricator (Fitch) | HEMIPTERA | Aphididae | Grylloprociphilus | 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 ornatrix (Linnaeus) | LEPIDOPTERA | Arctiidae | Utetheisa | ornatrix | (Linnaeus) | |
| Bermudagrass mite | Aceria cynodoniensis Sayed | ACARI | Eriophyidae | Aceria | 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 casebearer* | Coleophora serratella (Linnaeus) | LEPIDOPTERA | Coleophoridae | Coleophora | serratella | (Linnaeus) | *Also called cigar casebearer |
| birch leafminer | Fenusa pumila (Leach) | HYMENOPTERA | Tenthredinidae | Fenusa | pumila | (Leach) | |
| 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 blow flies (genera) | Protocalliphora Hugh | DIPTERA | Calliphoridae | Protocalliphora | Hough | ||
| 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 and yellow mud dauber | Sceliphron caementarium (Drury) | HYMENOPTERA | Sphecidae | Sceliphron | caementarium | (Drury) | |
| 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 Say | COLEOPTERA | Scarabaeidae | Copris | incertus | 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 | Apion (Fallapion) occidentale Fall | COLEOPTERA | Brentidae | Apion | occidentale | Fall | |
| black swallowtail* | Papilio polyxenes Stoll | LEPIDOPTERA | Papilionidae | Papilio | polyxenes | Stoll | *Immature called parsleyworm |
| black tail bumble bee | Bombus melanopygus Nylander | HYMENOPTERA | Apidae | Bombus | melanopygus | Nylander | |
| 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 | Oecanthidae | 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 alfalfa aphid | Acyrthosiphon kondoi Shinji | HEMIPTERA | Aphididae | Acyrthosiphon | kondoi | Shinji |