Flies typically have short and streamline bodies, which makes them well-adapted for aerial movement. The first segment of the fly is the head, which consists of the antennae, compound eyes, and the mouth. Because flies do not have teeth, or any other method to eat solid foods, they consume only liquids.
It is the presence of a single pair of wings, that distinguishes true flies from other insects, with "fly" found in their name; such as the dragonfly, damselfly, whitefly, firefly, and butterfly.
In terms of ecological, medical and economic importance, true flies are one of the major insect orders, containing (an estimated) 240,000 species. The mosquito in particular, is of great significance to researchers and pest control professionals, for it's continued role in transmitting infectious diseases, such as malaria, the West Nile virus and yellow fever.
Read more about the fly.
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