£0 Beautiful Butter/lies. 



showing how a pair of them embrace and hold fast to a 

 twig or branch. 



We have now to speak of the head of the Cater- 

 pillar which is harder than the rest of the body, and 

 is generally composed of two oval plates joined toge- 

 ther ; in the next cut is represented the under side of 

 this head ; that part marked b is the mouth, consisting 

 of an upper lip, with a notch in the centre ; c c are the 



two strong mandibles, or jaws ; and d is the under lip. 

 near the top of which is a cone-shaped protuberance, 

 from the centre of which, through a small hole, issues 



