INSECTS. 



103 



that al'e weaker than themselves; some feed upon timber; 

 others upon leaves and grass ; some, like the " worm i' the 

 bud," feast on our loveliest flowers; and others revel on the 

 nectar of our choicest fruits. Some idea of the elaborate 

 apparatus by which the food is assimilated may be formed 

 from an examination of the digestive system in one of the 

 carnivorous Beetles (Fig. 80). 



Fie?. 80. DIGESTIVE APPARATUS OF BEETLE. 



Fig. 80 a. The head, with mandibles and antennae. 

 -c, Stomach and intestine. d, Biliary vessels. 

 PART i. F 



? 1 , The crop and gizzard. 



