THE ELEPHANT SPHINX. 



31 



tapering point ; or entirely conceal the head, and 

 contract the first joints, by drawing them apparently 

 into the body. 



The caterpillars form a white web among the leaves 

 in August, and continue in the pupa state during 

 the winter, when it is yellow. The Sphinx emerges 

 in the following May. They are very subject to 

 attacks from the Ichneumon Fly, to which they fre- 

 quently fall a sacrifice. 



