 the oestridae are a family of flies variously known as bot flies, warble flies, heel flies, gadflies, and similar names. their larvae are internal parasites of mammals, some species growing in the host's flesh and others within the gut. the human botfly, dermatobia hominis, is the only species of bot fly known to parasitize humans routinely, though other species of fly do cause myiasis in humans. ==general== a botfly, also written bot fly, bott flyjournal of the department of agriculture of western australia, volume 9, pub: western australia. dept. of agriculture, 1904, p 17 or bot-fly in various combinations, is any fly in the family oestridae. their lifecycles vary greatly according to species, but the larvae of all species are internal parasites of mammals. largely according to species, they also are known variously as warble flies, heel flies, and gadflies. the larvae of some species grow in the flesh of their hosts, while others grow within the hosts' alimentary tracts. the word "bot" in this sense means a maggot. a warble is a skin lump or callus such as might be caused by an ill-fitting harness, or by the presence of a warble fly maggot under the skin. the human botfly, dermatobia hominis, is the only species of bot fly whose larvae ordinarily parasitise humans, though flies in some other families episodically cause human myiasis, and are sometimes more harmful. ==family oestridae== the oestridae now are generally defined as including the former families oestridae, cuterebridae, gasterophilidae, and hypodermatidae as [[famil
Insect_families Oestridae Parasites_of_equines Parasitic_flies