Ochlerotatus dorsalis

Ochlerotatus dorsalis is abundant in the southern portions of Teton County during the summer months.  It typically has multiple generations each summer and occurs most frequently in irrigated pastures and hayfields.  Ochlerotatus dorsalis is notable because it is an extremely ferocious biter and will actively seek a blood meal during mid-day with light winds, conditions where most mosquito species will less active.  Image from Carpenter & LaCasse, 1955.