120 INSECTS AFFECTING THE GRAPE. 



and having a wide grayish border along the hind 

 margin, on the front edge of which is a row of dark 

 spots. These moths make their appearance during 

 June and July, flying about grape-vines and various 



Fig. 56. Pupa of Achemon Sphinx. 



flowers at dusk, and depositing their eggs on the un- 

 der sides of the leaves of grape and Virginia Creeper. 

 Within a few days these eggs hatch into little larvae 

 that feed upon the foliage, growing so rapidly that 

 by September they are nearly four inches long, and 

 as thick as a man's finger (Fig. 57). At this time 

 different individuals vary greatly in color, some be- 

 ing straw-yellow and others reddish-brown. There 

 are six cream-colored spots along the sides, and nu- 

 merous little dots scattered over the body. The head 



Fig. '<'. Larva of Achemon Sphinx. 



and first two body segments are smaller than the 

 rest, allowing the caterpillar to draw them partially 

 inside the next one back. 



The fully-grown caterpillar descends to the ground, 

 and entering the soil several inches forms a smooth 

 oval cell, within which it changes to a dark, shining 



