Appleton’s wetlands, riverbanks, wooded trails, and residential areas support several mosquito species throughout the warmer months. While more than 50 species exist in Wisconsin, only a few are responsible for most nuisance bites and disease concerns in the Fox Valley region.
One of the most common species in Wisconsin.
Emerges in large numbers after spring rains or flooding.
Aggressive biter, active mainly at dusk and dawn.
Does not typically transmit disease but is a major nuisance.
Found in forested areas and shaded trails near parks and rivers.
One of the first species to appear in early spring.
Bites during the day and prefers cooler, humid habitats.
Black-and-white striped mosquito known for daytime biting.
Breeds in containers around homes—gutters, birdbaths, buckets, old tires.
Though less common in Appleton than southern states, reports have increased in recent years due to warming climates.
Most active from dusk through early morning.
Breeds in stagnant water with organic material—storm drains, rain barrels, clogged gutters.
Primary carrier of West Nile virus in Wisconsin.
