Western Encephalitis Mosquito vs Sunflower Maggot Fly

Side-by-side species comparison

Attribute Western Encephalitis Mosquito Sunflower Maggot Fly
Scientific Name Culex tarsalis Strauzia longipennis
Order Diptera Diptera
Family Culicidae Tephritidae
Size 4-6 mm 5-8 mm
Habitat Wetlands Grasslands
Diet Blood Feeders Leaf Miners
Regions Western North America, from Canada to Mexico North America
Conservation Least Concern Least Concern

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.

Sunflower Maggot Fly

A picture-winged fruit fly whose larvae mine the stems of sunflowers. Adults have attractive amber-patterned wings.

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Did You Know?

Despite being common, it rarely causes economic damage to commercial sunflower crops.