INSECTS HARMFUL TO LIVE STOCK. 



221 



the larger kind attacks horses and cattle, and so 



fierce is its bite to get at the 



blood, that if the attacked animal 



stands after it is bitten, drops of 



blood may often be seen on the 



ground where it stands. 



The Forest Fly is about one- 

 third of an inch long. It is a 

 brown, broad fly, with two broad 

 stumpy wings. It seldom flies. In summer and 

 autumn it sucks the blood of horses, especially 

 about the stomach and flanks, and it causes 

 great irritation by moving all over the body. 



When it settles it sticks very 

 tight, and can easily be killed with 

 the hand. 



Warble or Bot Fly. This fly 

 is one of the greatest pests that 

 our cattle suffer from. It is on 

 the wing during the summer 

 (June to September), and when 

 the cattle hear it they get very 

 restless, gallop about like mad, with tail in the 

 air. They will take any risks, jump down from 

 heights, and if the pasture is on the edge of 

 a wood it will take a very strong fence to keep 

 them out. They seem to think that by rushing 

 at break-neck speed through a wood they may 

 get rid of the fly. 



WARBLE FLY AND 

 MAGGOT. 



(lEstrus Hovis.) 



