sheep gadfly(n = noun.animal) oestrus ovis, sheep botfly - larvae are parasitic on sheep;
is a kind of botfly
is a member of genus oestrus, oestrus

barbary sheep, bighorn sheep, black sheep, dall sheep, dall's sheep, domestic sheep, gadfly, maned sheep, marco polo sheep, marco polo's sheep, merino sheep, mountain sheep, musk sheep, rocky mountain sheep, sheep, sheep bell, sheep botfly, sheep dip, sheep dog, sheep fescue, sheep frog, sheep ked, sheep laurel, sheep pen, sheep plant, sheep polypore, sheep rot, sheep sorrel, sheep tick, shetland sheep dog, vegetable sheep, white sheep, wild sheep