Eastern Tree Hole Mosquito vs Screwworm Fly

Side-by-side species comparison

Attribute Eastern Tree Hole Mosquito Screwworm Fly
Scientific Name Aedes triseriatus Cochliomyia hominivorax
Order Diptera Diptera
Family Culicidae Calliphoridae
Size 4-6 mm 8-12 mm
Habitat Forests Forests
Diet Blood Feeders Blood Feeders
Regions Eastern North America Central America, South America, Caribbean
Conservation Least Concern Least Concern

Eastern Tree Hole Mosquito

A forest mosquito that breeds in water-filled tree holes and discarded tires. It is the primary vector of La Crosse encephalitis virus in North America.

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Did You Know?

It can transmit La Crosse virus directly to its offspring through transovarial transmission.

Screwworm Fly

A devastating parasitic fly whose larvae feed on living tissue of warm-blooded animals. It was eradicated from North America using the sterile insect technique.

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Did You Know?

The sterile male release program that eradicated it from the US is considered one of the greatest triumphs in pest control history.