CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS II3 



black spines. The cerci of the male are stout, and two lobed; the 

 subgenital plate is narrow. The young and newly transformed adults 

 are greenish (Fig. 68). Its transformations are later than those of 

 M. atlanis. 



Clear-winged Locust (Camnula pellucida Scudder). — This locust 

 occasionally does serious injury' in the West, and frequents high dry 

 soil. It is of a light brown color; the tegmina are smoky brown with 

 darker spots and yellowish blotches on the sides and a yellowish brown 

 stripe along each humeral angle. The wings are transparent and pellucid 

 with dark veins. Body of male 19 mm. long, of female 22 mm. It 

 is often associated with M. atlanis in the East, and is the earliest of the 

 grasshoppers (Fig. 6g). 



^e-^ 



Fig. 69. — Pellucid or clear-winged grasshopper {Camnula pellucida): Adult female. 

 About twice natural size. {After W. R. Walton, U. S. Bur. Ent.) 



Carolina Locust {Dissosteira Carolina Linn.). — This locust is larger 

 than the preceding species and is of a pepper-and-salt color, with varia- 

 tions from grey to yellow or reddish. The hind wings are black 

 margined with yellow. It is sometimes injurious to corn, wheat, alfalfa 

 and soy beans. 



Natural Enemies of Locusts. — Robber-flies, bee-flies, flesh-fly and 

 blow-fly larvae, digger wasps and bhster-beetle larvae; birds and domes- 

 tic fowls; toads, snakes, moles, mice, ground squirrels, skunks and hogs; 

 mites, spiders, "hair-snakes," etc. 



Control of Locusts. — (a) AppHcation of poisoned baits (see Part IV, 

 p. 398). {b) Use of hopperdozers. {c) Destruction of eggs by fall 

 cultivation, {d) Co-operation of communities. 



(Consult U. S. Com. Rept. or. Rocky Mt. Locust, 3 vols.. Farmers' Bulls. 691 and 747, U. S. Dept. 

 Agr.; Giro, s, Ent. Br. Dept. Agr., Can.; Cornell Bull. 378; Mich. sp. Bui. 83) 



