M>1?<R A 



Xtes^?: 



a * G 



FIG. 354. A punkie, or "no-see-um" (Ceratopogon guttipennis). (Greatly enlarged) 



a, adult ; b, head of same ; c, larva ; d, head of same ; r, pupa. (After Pratt, United States 



Department of Agriculture) 



FIG. 355. a, a net-winged midge (Bib- 

 liocephala elegantnlns], female (two 

 and one half times natural length); b,c, 



\ upper and under sides of larva of B. 



comstockii (five times natural length) 



(After Kellogg) 



225 



