IKSECT ENEMIES OF THE GRAPE. 209 



greenish blue color above ; the underside is a dark green, 

 and the antennae and feet are dull black. It is only about 

 three-twentieths of an inch in length, but when abund- 

 ant it soon cuts the leaves full of holes and does consid- 

 erable damage. 



Usually two broods appear in a season ; the first in 

 April or May, according to latitude, and the second in 

 July and August. Dusting the vines 

 with soot, or strong hard wood ashes 

 will usually drive them away, if it does 

 not kill them. Arsenical poisons may 

 also be applied, if more simple insecti- 

 cides do not answer. 



Spotted Pelidnota (Pelidnota 

 punctata). This beetle is occasionally FIG. 79. 



found upon the grape vine in the months of July and 

 August. "It is of an oblong, oval shape, and about an 

 inch long. The wing-covers are tile-colored, or dull, 

 brownish yellow, with three distinct 

 black dots on each, Fig. 79 ; the 

 thorax is darker and slightly bronzed, 

 with a black dot on each side; the 

 body beneath and the legs are of a 

 deep, bronzed, green color. The Pel- 

 idnota is of such a large size that, 

 should its numbers ever become great, 

 it would be very destructive. I have 

 never found more than half a dozen 

 upon any one vine, and these were easily picked off and 

 killed. 



Goldsmith Beetle (Cotalpa lanigera). This 

 beetle is found mostly upon trees, such as the pear, oak, 

 hickory, but most abundant on the poplars ; but having, 

 in several instances, found it feeding upon the leaves of 

 the grapevine, I have inserted an illustration (Fig. 80) 

 and a description, so that the attention of the vineyard- 

 14 



