HOKSE BOT FLY. 



67 



The Ox Warble Fly, or Bot Fly, is a two-winged 

 Fly, upwards of half-an-iuch in length, so banded and 

 marked with differently-coloured hair as to be not 



Fig. 52. — Maggots or Horse Bots attached to membrane of stomach, 

 after Bracy Clark. 



unlike a Humble Bee. The face is yellowish ; the 

 body between the wings yellowish before and black 

 'behind ; and the abdomen whitish at the base, black 



2 1 3 



Fig. 53.— 1, Ox Warble Fly; 2, maggot; 3, chrysalis. 



in the middle, and orange at the tip. The female is 

 furnished with a somewhat telescope-formed extension 

 of the end of the abdomen which acts as a long egg- 

 laying tube, and the egg is white and oval, with a 

 small brownish lump at one end. 



On hatching from the egg, the maggot is not of the 



