WESTERN CORN ROOT WORM (Diabrotica longicornis). 1 



1 Adult, or beetle; a, claw of hind leg; much enlarged. 2 Larva, 

 or worm, much enlarged. 3 Egg, highly magnified. 



WHEAT JOINT WORM (Isosoma tritici). 2 



L Adult of the joint worm much enlarged. 2 One . 

 effect of the joint worm in wheat straw. 



Dp*. Bull. 8. Bur. Ent. Cir. 66. 



(.261 ) 



