DCHP-1 Online
deer fly 
a blood-sucking horsefly of the genus Chrysops.
See also: bulldog fly caribou fly
- 1903 The question of flies--using that, to a woodsman, connotive word in its wide embracement of mosquitoes, sand-flies, deer-flies, black flies, and midges--is one much mooted in the craft.
- 1962 But in addition, the bogs of the region abound with mosquitoes, deer flies, snapping turtles, lizards and snakes.
- 1903 The question of flies--using that, to a woodsman, connotive word in its wide embracement of mosquitoes, sand-flies, deer-flies, black flies, and midges--is one much mooted in the craft.