334 



MOTHS AND BUTTERFLIES. 



coloi-s, and some are supplied with soft horns or filaments growing 

 frr,m various parts of their bodies. At the back of the head of the 



Metamoipliosis of Papilio. 



larva is situated a forked organ giving off a powerful odor, which 

 is doubtless used as a means of protection against its vanous ene- 

 mies. When not in use this organ is retracted and entirely concealed. 

 The Larva; feed on various trees and herUaceous plants, but are 



