INSECTS INJURIOUS TO COTTON 



251 



few days and the young bugs, or nymphs, are grayish or yellowish 

 in color and resemble the adults except in the lack of wings. Two 

 or three generations occur annually in Texas, and the insects are 

 not common on cotton until midsummer. They are exceedingly 

 fond of banana trees, sorghum and sunflowers, sometimes doing 

 considerable injury to the latter, but there is no evidence for con- 

 sidering them pests of cotton. 



The Cotton Leaf-bug * 

 This insect was the cause of considerable damage in northern 



FIG. 179. The cotton leaf-bug 

 (Calocoris rapidus): a, adult; 

 b, c, d, stages in growth of 

 nymph ; and cotton boll, showing 

 spots injured by cotton leaf-bug 

 all enlarged. (Author's illustra- 

 tion, U. S. Dept, Agr.) 



Texas in the latter part of the season of 1904, and had been pre- 

 viously reported as a pest of cotton, though its injury had never 

 t Calocoris rapidus Say. Family Capsidce. 



