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Am. J. Trop. Med. Hyg., 24(5), 1975, pp. 889-893
Copyright © 1975 by The American Society of Tropical Medicine and Hygiene

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Host Preferences of Aedes Trivittatus (Diptera: Culicidae) in Central Iowa*

Robert R. Pinger{dagger} AND Wayne A. Rowley
Department of Entomology, Iowa State University, Ames, Iowa 50010

The vertebrate host preferences of Aedes trivittatus mosquitoes were studied to gain an insight into the possible hosts of trivittatus (TVT) virus (California encephalitis group) in Iowa. Engorged mosquitoes were collected with a Malaise trap and Dry Ice-baited CDC miniature light traps. The origin of mosquito blood meals was determined by the capillary tube precipitin test. Of 600 A. trivittatus blood meals tested, 409 (68.2%) reacted positively with anti-rabbit serum. The incidences of mosquitoes feeding on other vertebrate species ranged from 0.2% to 2.5%. The vertebrate host preferences of A. trivittatus suggest a close association between this mosquito species and the eastern cottontail rabbit (Sylvilagus floridanus) in central Iowa. Furthermore, the results indicate that the eastern cottontail rabbit may be an important host for TVT virus in Iowa.

Accepted for publication February 3, 1975.


* In part from a dissertation submitted to the Graduate College of Iowa State University as partial requirement for the Doctor of Philosophy degree.

Journal Paper No. J-8057 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa 50010. Project No. 2053.

Address reprint requests to: W. A. Rowley, Department of Entomology, Iowa State University, Ames, Iowa 50010.


{dagger} Present address: Department of Entomology, Walter Reed Army Institute of Research, Washington, D. C. 20012.






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Copyright © 1975 by the American Society of Tropical Medicine and Hygiene.