Comparison of Isoenzyme Electrophoresis and Morphometric Analysis for Phylogenetic Reconstruction of the Rhodniini (Hemiptera: Reduviidae: Triatominae).
J. P. Dujardin, T. Chavez, J. M. Moreno, M. Machane, F. Noireau, and C. J. Schofield …. 653

Experimental and Field Evaluations of Two Acaracides for Control of I. Pacificus (Acari: Ixodidae) in Northern California.
Scott E. Monsen, Lawrence R. Bronson, James R. Tucker, and Charles R. Smith …. 660

New Esterase Enzymes Involved in Organophosphate Resistance in Culex Pipiens (Diptera: Culicidae) from Guang Zhou, China.
Chuan Ling Qiao, Zi Qing Sun, and Jun E. Liu …. 666

Selection of Refractory and Permissive Strains of Aedes triseriatus (Diptera: Culicidae) for Transovarial Transmission of La Crosse Virus.
D. H. Graham, J. L. Holmes, S. Higgs, B. J. Beaty, and W. C. Black IV …. 671

Sequence Analysis of the Second Internal Transcribed Spacer of Ribosomal DNA in Anopheles oswaldoi (Diptera: Culicidae).
Mauro T. Marrelli, Rosely S. Malafronte, Carmen Flores-Mendoza, Ricardo Lourenco-De-Oliveira, Judith K. Kloetzel, and Osvaldo Marinotti …. 679

Genetic and Morphological Characterization of the Aedes (Ochlerotatus) dorsalis (Diptera: Culicidae) Group in North America.
John E. Gimnig and Bruce F. Eldridge …. 685

Observations on the Life Cycle of Coelomomyces indicus (Blastocladiales: Coelomomycetaceae) in Anopheline Mosquitoes from the Philippines and Thailand.
Howard C. Whisler, Bernardo P. Gabriel, Jariya Chanpaisaeng, Stephan L. Zebold, and Leodegario E. Padua …. 695

Effects of Larval Density on the Size of Aedes polynesiensis Adults (Diptera: Culicidae).
David R. Mercer …. 702

Host Feeding of Mosquitoes (Diptera: Culicidae) Associated with the Recurrence of Rift Valley Fever in Egypt.
Adel M. Gad, Hoda A. Farid, Reda R. M. Ramzy, Mahmoud B. Riad, Steven M. Presley, Stanton E. Cope, Mossad M. Hassan, and Ali N. Hassan …. 709

Infection Rates of Amblyomma americanum (Acari: Ixodidae) by Ehrlichia chaffeensis (Rickettsiales: Ehrlichieae) and Prevalence of E. chaffeensis-Reactive Antibodies in White-Tailed Deer in Southern Indiana, 1997.
Fresia E. Steiner, Robert R. Pinger, and Carolyn N. Vann …. 715

Seasonal Activity and Host Associations of Ixodes scapularis (Acari: Ixodidae) in Southeastern Missouri.
Thomas M. Kollars, Jr., James H. Oliver, Jr., Peggy G. Kollars, and Lance A. Durden …. 720

Efficacy of Entomopathogenic Nematode Strains Against Engorged Boophilus annulatus Females (Acari: Ixodidae) Under Simulated Field Conditions.
Michael Samish, Evgeny Alekseev, and Itamar Glazer …. 727

Interaction Between Ticks (Acari: Ixodidae) and Pathogenic Nematodes (Nematoda): Susceptibility of Tick Species at Various Developmental Stages.
Michael Samish, Evgeny Alekseev, and Itamar Glazer …. 733

Impact of Microclimate on Immature Tick-Rodent Host Interactions (Acari: Ixodidae): Implications for Parasite Transmission.
Sarah E. Randolph and Katie Storey …. 741

Infestation of Peromyscus leucopus and Tamias striatus by Ixodes scapularis (Acari: Ixodidae) in Relation to the Abundance of Hosts and Parasites.
K. A. Schmidt, R. S. Ostfeld, and E. M. Schauber …. 749

Brugia malayi Microfilariae (Nematoda: Filaridae) Enhance the Infectivity of Venezuelan Equine Encephalitis Virus to Aedes Mosquitoes (Diptera: Culicidae).
Jefferson A. Vaughan, Milan Trpis, and Michael J. Turell …. 758

Cloning and Sequencing of a Putative Acetylcholinesterase cDNA from Boophilus microplus (Acari: Ixodidae).
Ruben Hernandez, Haiqi He, Andrew C. Chen, G. Wayne Ivie, John E. George, and G. Gale Wagner …. 764

First-Generation Physical Map of the Culicoides variipennis (Diptera: Ceratopogonidae) Genome.
Richard A. Nunamaker, Susan E. Brown, Linda E. McHolland, Walter J. Tabachnick, and Dennis L. Knudson …. 771

Emergence, Survival, and Fecundity of Adult Cat Fleas (Siphonaptera: Pulicidae) Exposed as Pupae to Juvenile Hormone Mimics.
Robert J. Miller, Alberto B. Broce, Michael W. Dryden, and James E. Throne …. 776

Susceptibility to Insect Growth Regulators and Cuticle Deposition of the Cat Flea (Siphonaptera: Pulicidae) as a Function of Age.
Robert J. Miller, Alberto B. Broce, Michael W. Dryden, and Theodore Hopkins …. 780

An Olfactometer for Discriminating Between Attraction, Inhibition, and Repellency in Mosquitoes (Diptera: Culicidae).
E. Barcin Dogan and Philippe A. Rossignol …. 788

A New Mechanism Conferring Unprecedented High Resistance to Chlorpyrifos in Culex pipiens (Diptera: Culicidae).
Nicole Pasteur, Mat Marquine, Hassen Ben Cheikh, Clotilde Bernard, and Denis Bourguet …. 794

Scanning Electron Microscopy and Comparative Morphometrics of Eggs from Six Bot Fly Species (Diptera: Oestridae).
Douglas D. Colwell, Craig R. Baird, Byron Lee, and Katharine Milton …. 803

Potential for Aging Female Aedes aegypti (Diptera: Culicidae) by Gas Chromatographic Analysis of Cuticular Hydrocarbons, Including a Field Evaluation.
M. L. Desena, J. M. Clark, J. D. Edman, S. B. Symington, T. W. Scott, G. G. Clark, and T. M. Peters …. 811

Aedes aegypti (Diptera: Culicidae) Age Determination by Cuticular Hydrocarbon Analysis of Female Legs.
M. L. Desena, J. D. Edman, J. M. Clark, S. B. Symington, and T. W. Scott …. 824

Three Incidents of Human Myiasis by Rodent Cuterebra (Diptera: Cuterebridae) Larvae in a Localized Region of Western Pennsylvania.
Andrew C. Keth …. 831

Decomposition and Arthropod Succession on Exposed Rabbit Carrion During Summer at High Altitudes in Colorado, USA.
Grant D. De Jong and James W. Chadwick …. 833

Morphometric and Phenetic Studies of Five Geographical Populations of Lutzomyia whitmani (Diptera: Psychodidae) in Brazil.
E. S. Dias, R. A. Barata, C. L. Fortes-Dias, R. P. Brazil, J. C. Miranda, S. Brando Filho, and P. M. Linardi …. 846

Calibrated Funnel Trap for Quantifying Mosquito (Diptera: Culicidae) Abundance in Wells.
B. M. Russell and B. H. Kay …. 851

Vector Competence of Mosquitoes (Diptera: Culicidae) from Maroochy Shire, Australia, for Barmah Forest Virus.
P. A. Ryan and B. H. Kay …. 856

Barmah Forest Virus Epidemic on the South Coast of New South Wales, Australia, 1994-1995: Viruses, Vectors, Human Cases, and Environmental Factors.
Stephen L. Doggett, Richard C. Russell, John Clancy, John Haniotis, and Michael J. Cloonan …. 861

Seasonal Occurrence of Leptotrombidium deliense (Acari: Trombiculidae) Attached to Sentinel Rodents in an Orchard near Bangkok, Thailand.
Stephen P. Frances, Pochaman Watcharapichat, Duangporn Phulsuksombati, Panita Tanskul, and Kenneth J. Linthicum …. 869

Action of the Saliva of Triatoma infestans (Heteroptera: Reduviidae) on Sodium Channels.
Aurea Dan, Marcos Horcio Pereira, Jorge Luiz Pesquero, Lilia Diotaiuti, and Paulo Srgio Lacerda Beiro …. 875

Black Flies (Diptera: Simuliidae) of the Special Province of Aceh, Indonesia.
Upik Kesumawati Hadi and Teuku Fadrial Karmil …. 880

Small-Scale Field Trial of a Sensing Device for Detecting Peridomestic Populations of Triatoma infestans (Hemiptera: Reduviidae) in Northwestern Argentina.
R. J. De Marco, R. E. Grtler, O. D. Salomn, and R. Chuit …. 884

Reservoir Competence of Carcinops pumilio for Salmonella enteritidis (Eubacteriales: Enterobacteriaceae).
Joshua P. Gray, Carol W. Maddox, Patrick C. Tobin, Jennifer D. Gummo, and Charles W. Pitts …. 888

Screening of Ten Plant Species for Metaphase Chromosome Preparation in Adult Mosquitoes (Diptera: Culicidae) Using an Inoculation Technique.
A. Jitpakdi, W. Choochote, D. Insun, P. Tippawangkosol, P. Keha, and B. Pitasawat …. 892

Honeydew Sugars in Wild-Caught Female Horse Flies (Diptera: Tabanidae).
Fiona F. Hunter and Anne M. Ossowski …. 896

Pathogenicity of Bacillus thuringiensis Variety kurstaki to Ixodes scapularis (Acari: Ixodidae).
Elyes Zhioua, Klaus Heyer, Marsha Browning, Howard S. Ginsberg, and Roger A. LeBrun …. 900

Baseline Susceptibility of a Laboratory Strain of Pediculus humanus humanus (Anoplura: Pediculidae) Using a Modified World Health Organization Testing Protocol.
Brian C. Zeichner …. 903

Ophthalmomyiasis Caused by Sarcophaga crassipalpis (Diptera: Sarcophagidae) in a Hospital Patient.
Shigehiko Uni, Satoshi Shinonaga, Yasuyoshi Nishio, Akihiro Fukunaga, Motohiro Iseki, Tomoko Okamoto, Nobuhiko Ueda, and Tokuhiko Miki …. 906

List of Reviewers …. 912

1998 Cumulative Author Index …. 914

1998 Cumulative Subject Index …. 918