many seagulls flying over blue sky

>This article is about the insect. For other meanings, see Fly (disambiguation) As defined by entomologists, a fly (plural flies) is any species of insect of the order Diptera, some of which can land on food and transmit bacteria to humans. A few, like Ormia ochracea, have very advanced hearing organs. Flies are common amongst humans and have caused many diseases to spread in the past. The house-fly (Musca domestica) and mosquito are particularly common amongst humans. Other flies, such as the horse-fly (Family Tabanidae), can inflict painful bites. The larva of a fly is commonly called a maggot. See more at Wikipedia.org...