THE BOMBYCINA. 



123 



with a hump upon the third or fourth segment, and with their 

 tail ends furnished with two prolongations, have become of a 

 delicate green colour, and they are marked with a lozenge of a 

 brownish tint, and a white border on the back. 



The larva has strong membranous legs to carry its heavy body, 

 and they are furnished with long spines. The tails are nearly 



THE PUSS CATERPILLAR AND THE MALE MOTH. 



white, and are ornamented with black tubercles. The greatest 

 peculiarity of the insect is this development of the last two lcg5 

 into two appendages, which are, in fact, tails pierced for the 

 projection of tentacules which are doubtless of use to it. Perhaps 

 the caterpillar may use them to scare the ichneumons away 

 when they are about to lay their eggs in its tempting looking 

 body. When fully grown the larva descends to the foot of the 

 tree upon which it has been feeding, and makes a very thick and 

 tough cocoon, by sticking together vegetable tissues with a great 

 deal of viscous secretion. It is then metamorphosed, and passes 

 the autumn and winter in the chrysalis state. 



