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"A botfly, also written bot fly, bott fly or bot-fly in various combinations, is any fly in the family Oestridae. The life cycles 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 sometimes more harmfully".
"In cold climates supporting reindeer or caribou-reliant populations, large quantities of Hypoderma tarandi (warble fly) maggots are available to human populations during the butchery of animals. These are relished in modern times by some as important seasonal luxuries containing high levels of protein, fats and salt.
The sixth episode of season one of the television series "Beyond Survival" entitled "The Inuit - Survivors of the Future" features survival expert Les Stroud and two Inuit guides hunting caribou on the northern coast of Baffin Island near Pond Inlet, Nunavut, Canada. Upon skinning and butchering of one of the animals, numerous larvae (presumably Hypoderma tarandi although not explicitly stated) are apparent on the inside of the caribou pelt. Stroud and his two Inuit guides eat (albeit somewhat reluctantly) one larva each, with Stroud commenting that the larva "tastes like milk" and was historically commonly consumed by the Inuit people."http://en.wikipedia.org/wiki/Botfly