black flyblack fly
any of a family (Simuliidae) of small, dark, dipterous flies of North American forests and mountains, whose larvae live attached to rocks in swift water: most species live on the blood of mammals and may transmit disease
Any of various small, dark-colored biting flies of the family Simuliidae, the larvae of which attach to rocks in streams and other flowing waters. Also called buffalo gnat .
- Alternative spelling of blackfly.