Phantom Midge vs Western Encephalitis Mosquito

Side-by-side species comparison

Attribute Phantom Midge Western Encephalitis Mosquito
Scientific Name Chaoborus crystallinus Culex tarsalis
Order Diptera Diptera
Family Chaoboridae Culicidae
Size 8-10 mm 4-6 mm
Habitat Ponds & Lakes Wetlands
Diet Predators Blood Feeders
Regions Europe, North America Western North America, from Canada to Mexico
Conservation Least Concern Least Concern

Phantom Midge

A nearly transparent midge whose larvae are planktonic predators in lakes. Larvae migrate vertically in the water column daily to avoid fish predation.

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Did You Know?

Its glass-clear larvae are almost invisible in water, earning the common name glassworm.

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.