m.TURIOUS INSECTS. 89 



At the present time it is distributed from Canada to the Gulf 

 of Mexico, and from the Atlantic to the Pacific. There are 

 two generations in a year ; and when abundant, as sometimes 

 happens, it is very destructive, causing, in some instances, a 

 loss of nearly half the crop. The first brood feeds on the leaves 

 not only of the grape, but has also been found feeding on the 

 leaves of the tulip, vernonia, wild raspberry, sassafras, and in 

 the swollen stems of amorpha. The second generation feeds 

 on the fruit of the wild raspberry as well as on that of the grape. 



The young larva bores into the interior of the grape, mak- 

 ing a discolored spot where it enters, Fig. 10, c, and feeds 

 not only on the pulp but also on the seeds. If a single grape is 

 not sufficient, the larva attacks a second, or even a third, draw- 

 ing them together into a cluster by means of its silken threads. 



The mature larva. Fig. 10, h, is dull green, with a reddish 

 tinge, and has the head and top of the following segment 

 dark yellowish green. They cut out a flap on the leaves, 

 which they fold over, or fold the edge of the leaf, and within 

 these places they transform to pupae. 



The perfect moth, which expands about four-tenths of an 

 inch, has the fore wings of a dark purplish brown color from 

 the base to the middle, beyond which they are marked with 

 spots and stripes of light and dark brown. Fig. 10, a. The 

 second generation spends the winter in the pupa state, at- 

 tached to the leaves which fall to the ground ; and, therefore, 

 if all infected fruit and the fallen leaves be burned, the most 

 of these insects would be destroyed. 



The American Bean-weevil. 



This native American insect {Bruclnis ohsoJetus, Say.), 



Fig. 11, causes a great amount of damage to the beans in 



certain parts of this State, and my attention has often been 



called to the injury they are doing. 



The female lays her eggs on the 



outside of the young bean pods, 



and as soon as they hatch the 



young larvfB bore through the pods 



and into the beans, sometimes as 



many as a dozen entering a single 



bean. These larvte rarely injure Bean-weevii, natural ' size and e, 

 the embrvo or germ, and when i^rged at «,- 6, an mfeBted bean. 



