types:
fly
two-winged insects characterized by active flight
bee killer,
robber fly
swift predatory fly having a strong body like a bee with the proboscis hardened for sucking juices of other insects captured on the wing
mosquito
two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals
gnat
any of various small biting flies: midges; biting midges; black flies; sand flies
fungus gnat
mosquito-like insect whose larvae feed on fungi or decaying vegetation
blow fly,
blowfly
large usually hairy metallic blue or green fly; lays eggs in carrion or dung or wounds
tachina fly
bristly fly whose larvae live parasitically in caterpillars and other insects; important in control of noxious insects
gadfly
any of various large flies that annoy livestock
bee fly
hairy nectar-eating fly that resembles a bee; larvae are parasitic on larvae of bees and related insects
vinegar fly
flies whose larvae feed on pickles and imperfectly sealed preserves
Haematobia irritans,
horn fly
small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn
gnat
(British usage) mosquito
Aedes albopictus,
Asian tiger mosquito
striped native of Japan thriving in southwestern and midwestern United States and spreading to the Caribbean; potential carrier of serious diseases
midge
minute two-winged mosquito-like fly lacking biting mouthparts; appear in dancing swarms especially near water
armyworm
larva of fungus gnat that feed on cereals and other grains; they march in large companies in regular order when the food is exhausted
black fly,
blackfly,
buffalo gnat
small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals