BOLLS PIERCED BY CALCORIS RAPIDUS. 291 



legs brown and green ; the wing-cases with a cross, shaped like the letter X, forming 

 four triangles, those nearest the thorax being reddish-brown ; the side triangles are 

 green. 



There is likewise another species (C. rapidus) which was found perforating the young 

 flower buds and bolls of cotton similar to the above. The head and anterior portion of 

 the thorax are reddish-brown, the remainder of the thorax yellow with a double mark 

 in the middle ; the wing-cases are brownish-black, with two longitudinal yellow lines 

 from the upper outside corner of the wing-cases to the posterior edge, forming a divid- 

 ing mark, somewhat shaped like the letter X. 



Mr. Trelease, on several occasions, noticed a bug piercing the bolls, 

 which, from his description, is probably Calcoris rapidus. 



It will be but just to add that many planters appreciate the difference 

 between the bolls actually destroyed by Heliotliis and those destroyed 

 by other means, as shown by the answers of several of our correspon- 

 dents. Still, on the whole, it seems probable that the majority confound 

 the various causes and put these results all down to the boll- worms' 

 account. But even allowing for this, its ravages, it can easily be seen, 

 are of a very grave character. 



