INSECTS ATTACKING CORN. 



23 



small tubercles appear; in the Red-legged Locust tke last joint 

 of the male abdomen is broader and not narrowed and not 

 notched, appearing, as Dr. Riley has said, more like the stern of a 

 barge. The males of either species may be distinguished from 



FIG. 12. ROCKY MOUNTAIN LOCUST: a, very young; b, young; c, young with wing-pads; 

 d, adult; e, adult female; /, terminal view of last abdominal segment of male. 



the females by the lack of an ovipositor or egg-laying apparatus ; 

 this ovipositor appearing as four small, pointed, backward-pro- 

 ecting pieces, which may be spread apart or closely pressed to- 

 gether. 



The eggs of locusts or grasshoppers are laid in the ground in 

 masses of from 50 to 100, and the young when first hatched are, 

 as previously stated, without wings. 



