66 



FIRST BOOK OF ZOOLOGY. 



a large card, with, the names of the different parts neatly 

 marked upon the card, as in the accompanying figure (Fig. 



68): 



labium. 



second wing. - 

 tlhircL leg. 



iVBDOMEN". 



Fi«. 68. — A Common Browh Beetle, witu tile Parts 6epaeated. 



Having now learned something about the parts of an 

 insect, and having seen how much, these parts vary in size 

 and appearance in different insects, the pupils are better pre- 

 pared to understand the surprising modification which the 

 mouth-parts undergo in the different groups. 



6-i. The parts of an insect's mouth, generally speaking, 

 consist of an upper lip, called the lab rum ; a pair of jaws, 

 called mandibles y a pair of smaller jaws, called maxillae, to 

 which are attached little jointed feelers, called maxillary 



