Species: Aedes sticticus


This species is an aggressive biter but is not known to be a disease vector.


Ae. sticticus occurs throughout most of the US and Canada, except for the southwest and northwest US. Eggs are laid in in the summer on the soil in depressions, swales and potholes found in riparian areas and river bottoms. Flooding in the spring stimulates hatching. Larval sites might contain both Ae. sticticus and Ae. vexans. Females are strong fliers and have been reported to migrate 25-30 miles from their place of emergence. In lab conditions, females can live over 90 days. This species feeds primarily on large mammals including cattle, deer, horses and humans. There is usually one generation per year.

Identifying Characteristics:

Pointed abdomen, no leg banding, wing with pale scales at base, area under spiracle without scales, banding on abdominal terga, scutum with dark median longitudinal stripe, all scutellar setae yellow. Similar to Ae. communis.

Distribution Map:

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Mosquito and Vector Surveillance Program

MSU Extension - Department of Animal and Range Sciences

Montana State University
P.O. Box 172900
Bozeman, MT 50717-2900

Location: Marsh Labs, Room 59

Veterinary Entomology Research Associate:

Marni Rolston

Professor Emeritus of Veterinary Entomology:

Dr. Greg Johnson


Dr. Grant Hokit (Carroll College)