Golden Dung Fly vs Western Encephalitis Mosquito

Side-by-side species comparison

Attribute Golden Dung Fly Western Encephalitis Mosquito
Scientific Name Scathophaga stercoraria Culex tarsalis
Order Diptera Diptera
Family Scathophagidae Culicidae
Size 7-10 mm 4-6 mm
Habitat Farmland Wetlands
Diet Predators Blood Feeders
Regions Europe, Asia, North America Western North America, from Canada to Mexico
Conservation Least Concern Least Concern

Golden Dung Fly

A common furry yellow fly that gathers on fresh cow dung to mate and hunt.

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Did You Know?

Males are fiercely competitive and wrestle each other for access to females on dung pats.

Western Encephalitis Mosquito

A medium-sized mosquito with a distinctive white band on the proboscis and banded legs. It is the most important vector of Western equine encephalitis and St. Louis encephalitis in western North America. It breeds in a wide variety of sunlit and shaded water sources.

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Did You Know?

Its feeding behavior shifts seasonally from birds in spring to mammals in late summer, which drives encephalitis virus spillover to humans.