Fig. 1.— The Hessian Fly.— A. Male Hessian Fly, much enlarged: B, Female, also much en- 

 larged: C. egjs; D, maggot: E. Flaxseed stag3: F. piece of stalk showing fly. natural size, laying 

 eggs: G, stalk of wheat injured at a. by the fly. The fine lines beside C. D. and E. show the true 

 length of these stages, the drawings being enlarged. — (Modified from Riley) 



