Aedes (Adm.) vexans


  • (Meigen)
  • 1830b:241 (F; Culex)
  • Berlin, Germany (MNHP)



Afghanistan, Algeria, Australia, Austria, Bangladesh, Belgium, Belize, Bosnia and Herzegovina, Bulgaria, Cambodia, Canada, China, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Guatemala, Hungary, India, Indonesia, Iran, Iraq, Italy, Kiribati, Korea, South, Laos, Latvia, Liberia, Libya, Lithuania, Macedonia, Malaysia, Mauritania, Mexico, Micronesia, Federated States of, Mongolia, Morocco, Myanmar (Burma), Nepal, Netherlands, Norway, Pakistan, Poland, Portugal, Romania, Russia, Samoa (Ind. State of Samoa, American Samoa, Western Samoa), Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sweden, Switzerland, Taiwan, Tajikistan, Thailand, Turkey, Tuvalu, Ukraine, United Kingdom (includes Guernsey, Jersey, Isle of Man), United States, contiguous lower 48, Vanuatu, Vietnam, Yemen, Yugoslavia (Serbia and Montenegro)



Immatures are found in unshaded fresh water flood pools in secondary scrub, but have also been collected in ditches, swamps, rice fields, and elephant foot prints. Habitats usually have little aquatic vegetation or algae. Females are night biters and readily feed on man and cattle (Reinert 1973).

Medical Importance

Capable of transmitting Eastern equine encephalitis virus (EEE), Western equine encephalitis virus (WEE), SLE, West Nile Virus (WNV) (Turell et al. 2005:60). It is also a vector of dog heartworm (Reinert 1973).


Adult Stage, detail images:

Click on image to open larger view in a separate window. Higher-resolution detail images of some specimens are available on request.

Adult Stage, illustrations:

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