556 



SUSPENDED COCOONS. 



fore to be torn by the beaks of insectivorous birds ; while its 

 pendulous position makes it doubly secure against their 

 attacks, as the apparatus gives way when they peck at it. 

 There is a small orifice at each end of the egg-shaped bag, to 

 admit of the escape of the moth when it changes from the 

 little chrysalis which sleeps tranquilly in its airy cage. 



Other caterpillars form cases with fragments of wood or 



J^fe 



THE LANTERN-PLY. 



leaves, in which they live secure from their enemies, whilst 

 they are feeding and growing. Some of these, composed of 

 small bits of stick, are knitted together with fine silken 

 threads, and others make tubes very like the cadis-worms of 

 English ponds. Others choose leaves, with which they form 

 an elongated bag, open at both ends, having the insides lined 



