Penn State Fact Sheet
Flies Black flies of the family Simuliidae, commonly called buffalo or turkey gnats, are pests of man and animals in many areas of Pennsylvania.
Ohio State Fact Sheet
Flies Certain species of adult black fly females are fierce biters, whereas others are strictly a nuisance by their presence around one's nostrils, ears, arms, hands, and other exposed skin areas.
Maryland Cooperative Extension
Flies Flies in and around the house.