174 ARTHROrODS: INSFXTS. 



numbers of other insects for food, thus benefiting the 

 farmer and gardener. The larvse or grubs, are soft, 

 white, and furnished with jaws like the adults ; like 

 the latter, they feed on other insects, which they se- 

 cure by digging holes in the ground, in which they 

 remain, the head just closing the opening of the hole; 

 when some insect comes near enough, they seize it, 

 draw it into the hole, and devour it. 



Ground Beetles, or Carabidae. 



These also prey upon other insects, and the kinds 

 are very numerous. They have the jaws very long 

 and hooked, and very long legs. Some of them have 

 no under wings. One kind is called the Caterpillar 



Fig. 295. — Caterpillar Hunter. 



Hunter, because it destroys so many larvje of other in- 

 sects. It eats great numbers of the Cankerworm, the 

 most destructive insect which has appeared upon our 

 beautiful fruit and shade trees, and which is described 

 on page 166. It appears about the time the Canker- 



