CHAPTER X. 



BESIDES the protection 

 afforded to many insects 

 by their so closely resem- 

 bling bark, leaves, or sticks, 

 which I have lately de- 

 scribed, others are able to 

 produce some powerful 

 odour when touched, as a 

 means of defence; many cater- 

 pillars also being provided with 

 spines and bristles, some of these 

 actually giving sharp stings, 

 whilst others can throw off irri- 

 tating finely-barbed hairs. 



Others rely on their habitations 



