180 



THE LIFE OF AN INSECT. 



equally useful, by concealing them from the notice 

 of their enemies. Thus, as we have before re- 



Leaf-rolling Larvce. 



marked, some dwell in tubes of leaves, hid from 

 every eye ; others encase themselves in a shield of 

 cemented gravel or shells, like those represented 

 in the cut, presenting a most grotesque appearance; 



others hide themselves 

 in variously-formed cells. 

 Some, immediately 



Larva Case of Shells. being tOUChed, roll 



selves up, like hedge-hogs, into a ball, which looks 

 like a little globe of hairs, and is so slippery 

 that it cannot be retained between the fingers; 

 others, again, when they are touched, instantly 

 drop down, and from their colour, resembling pre- 



on 



