HESSIAN FLY. 



45 



to follow the plan of carefully burning the infested 

 dust. 



The Hessian Fly {Cccidomyia destructor) is another 

 of the Cecidomyice which is very hurtful to various 



EO 



Fig. 41.- 



-1, Barley-stem elbowed down by Hessian Fly attack ; 

 2, showing position of "flax-seeds." 



kinds of corn in America, and in various places on the 

 Continent of Europe, and which was first observed in 

 this country in the year 1886. With us the attack is 

 in some degree to wheat, but chiefly to barley; and it 

 does not appear likely to be a serious crop pest here. 

 The perfect fly (Fig. 40, p. 44) much resembles a 

 stout-made little brown gnat, about one-eighth of an 

 inch in length, with one pair of smoky-grey wings, 

 and with long horns. 



