Eye Gnat vs Tsetse Fly

Side-by-side species comparison

Attribute Eye Gnat Tsetse Fly
Scientific Name Liohippelates pusio Glossina morsitans
Order Diptera Diptera
Family Chloropidae Glossinidae
Size 1.5-2.5 mm 8-17 mm
Habitat Farmland Grasslands
Diet Nectar Feeders Blood Feeders
Regions Southern United States, Central America, Caribbean Africa
Conservation Least Concern Least Concern

Eye Gnat

A tiny, shiny black fly attracted to eye and wound secretions of humans and animals. It is a suspected mechanical vector of bacterial conjunctivitis and yaws in tropical regions. Its persistent swarming around the face makes it an extremely annoying pest in agricultural areas.

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Did You Know?

These flies are so strongly attracted to eye secretions that they will persistently return to a person's face even after being brushed away dozens of times.

Tsetse Fly

Vector of African sleeping sickness (trypanosomiasis). Unlike most flies, females give live birth to a single large larva. Both sexes are obligate blood-feeders.

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Did You Know?

The tsetse fly is unique among insects — it gives birth to live young. The female nourishes a single larva internally with a milk-like substance, similar to mammalian lactation.