250 



INSECTS INJURIOUS TO THE GRAPE. 



eye-like spot in place of the tail, the breathing-pores along 

 the sides black, showing prominently in the cream-colored 



spots. It is a very 

 i^iG. 2^9. voracions feeder, and 



strips the vine of its 

 leaves with such ra- 

 pidity that it soon 

 attracts attention. 



When full grown, 

 it descends from the 

 vine and buries itself 

 in the ground, where 

 it forms an oval 

 cell, within which it 

 changes to a chrysa- 

 lis. The chrysalis is 

 of a chestnut-brown 

 color, with the seg- 

 ments roughened with 

 impressed points, the 

 terminal joint having 

 a long thick spine. 

 The insect usually re- 

 mains in the chrysa- 

 lis state until the fol- 

 lowing summer, but 

 occasionally it ma- 

 tures and escapes the 

 same season. Should these larvse at any time prove trouble- 

 some, they can be readily subdued by hand-picking. 



ISTo. 134. — The Achemon Sphinx. 



Philampelus achemon (Drury). 

 The caterpillar of this sphinx (Fig. 260) is truly a formida- 

 ble-looking creature, measuring, when full grown, if at rest, 

 ahaut three inches, and when in motion about three and a 



