Botfly

A dipterous insect of the family Estridaelig of many different species some of which are particularly troublesome to domestic animals as the horse ox and sheep on which they deposit their eggs A common species is one of the botflies of the horse Gastrophilus equi the larvaelig of which bots are taken into the stomach of the animal where they live several months and pass through their larval states In tropical America one species sometimes lives under the human skin and another in the stomach See Gadfly