Packard.] RELATIOISrS OF INSECTS TO MAN. 



83 



does not last long, nor does it swell much, and is not so pain- 

 ful, nor does it produce so much iuconvenience as the sting 

 of the honey bee. In countries where they abound, people 

 do not regard them with much terror. Chickens are very 

 fond of them and voraciously devour every one they can 

 find." The scorpion brings forth its young alive. 



The centipede is an annoying and even dangerous insect ; 

 the poison glands are lodged in the head, opening into the 



Fig. C.3. 



American Scorpion. 



channelled jaws as in the spiders. The bite of the larger 

 species is most formidable. 



Few are aware how painful and anno3'ing is the irritation 

 set up by the hairs of certain caterpillars. The hairs of 

 many kinds are finely barbed ; such are those of the Ctenucha 

 figured in our frontispiece. The caterpillar feeds on grass, 

 and I extract from my notes an account of the mode in 

 which it constructs its cocoon, tearing its slender barbed 



10 



