18 



INSECT MANUFACTURES. 



it is completed, it is rather more than an inch 

 long, and two lines in diameter at the orifice. The 

 outside of the case presents the upper surface of 

 the leaf in which the indentations are preserved. 

 The dwelling is a spacious one for the caterpillar, 

 so that it can turn round in 

 it with perfect ease. The 

 band of which the cone is 

 composed is taken from the 

 edge of the leaf, which the 

 caterpillar cuts away in pro- 

 portion as it winds it round 

 its own body. When one 

 portion has taken the re- 

 quired form, a little more is 

 cut out, but always in a di- 

 rection parallel with the edge 

 of the leaf. While the insect 

 is thus gradually rolling itself 

 up in a case, it also feeds 

 vigorously on the leaf, taking care, however, 

 always to spare the band which forms its habi- 

 tation. Another part of the cleverness of this 



LKAF-NEST IN WOUND. 



