274 INSECTS INJURIOUS TO THE GRAPE. 



should be resorted to, and if this is done while the larvae are 

 young and feeding in company, their destruction is easily 

 accomplished. 



No. 147. The Pyramidal Grape-vine Caterpillar. 



Pyrophila pyramidoides (Guen.). 



This caterpillar (Fig. 283) is frequently destructive to 

 grape-vines, particularly to those grown under glass, and may 

 be found on the leaves full grown about the middle of June. 



It is nearly an inch 



FlG - 283 ' and a half long, the 



body tapering to- 

 wards the front, and 

 thickened behind. 

 The head is rather 

 small, of a whitish- 

 green color, with the mandibles tipped with black ; the body 

 whitish green, a little darker on the sides, with a white stripe 

 down the back, a little broken between the segments or rings, 

 and widening behind. There is a bright-yellow stripe on 

 each side close to the under surface, which is most distinct on 

 the hinder segments, and a second one of the same color, but 

 fainter, half-way between this and the dorsal line ; this latter 

 is more distinct on the posterior portion of the body, and 

 follows the peculiar prominence on the twelfth segment, as 

 shown in the figure. The under side of the body is pale 

 green. 



When full grown, the caterpillar descends to the ground, 

 and, drawing together some loose fallen leaves or other 

 rubbish, spins a slight cocoon, within which it changes to a 

 dark-brown chrysalis, from which the perfect insect escapes 

 in the latter part of July. 



The moth (Fig. 284) measures, when its wings are expanded, 

 about one and three-quarter inches. The fore wings are dark 

 brown shaded with paler brown and with dots and wavy lines 

 of dull white; the hind wings are reddish, with a coppery 



