Botfly
Family Oestridae

The Oestridae now are generally defined as including the former families Oestridae, Cuterebridae, Gasterophilidae, and Hypodermatidae as subfamilies.

The Oestridae, in turn, are a family within the superfamily Oestroidea, together with the families Calliphoridae, Mesembrinellidae, Mystacinobiidae, Polleniidae, Rhiniidae, Rhinophoridae, Sarcophagidae, Tachinidae, and Ulurumyiidae.

Of families of flies causing myiasis, the Oestridae include the highest proportion of species whose larvae live as obligate parasites within the bodies of mammals. Roughly 150 species are known worldwide. Most other species of flies implicated in myiasis are members of related families, such as blow-flies.
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