*6 LECTURE IX. 



than in any others except those of the Moth and 

 Butterfly tribe. 



When the time arrives in which the Larve is to- 

 change into its next state, that of Chrysalis, or, as 

 Linnaeus calls it, Pupa, it ceases to feed, and hav- 

 ing placed itself in some quiet situation for the 

 purpose, lies still for several hours ; and then, by 

 a kind of laborious effort, frequently repeated, di- 

 vests itself of its external skin, or larve-coat, and 

 immediately appears in the very different form of 

 a chrysalis or pupa. The Chrysalis or Pupa differs 

 in the different tribes of Insects almost as much as 

 the Larve. In most of the Beetle-tribe it is 

 furnished with short legs, capable of some degree 

 of motion, though very rarely exerted. In the 

 Butterfly tribe it is perfectly destitute of all ap- 

 pearance of limbs, and has no other motion than- 

 a mere lateral bending or writhing when touched. 

 In the Locust tribe it differs but very little from 

 the perfect insect, except in not having the wings 

 complete. In most of the Fly tribe it is perfectly 

 oval, without any apparent motion, or distinction; 

 of parts. In the Bees and other Insects of a si- 

 milar cast, it is less shapeless than in that of Flies, 

 exhibiting the faint or imperfect appearance of the: 



