PARTS OF AN INSECT. 



69 



divided into two lobes at the extremity, by means of which 

 the fly laps up its liquid food. The insides of these lobes 

 are rough, and the irritation which flies produce when they 

 alight upon the hand is caused by the scratching of these 

 rough surfaces. 



antenna. 



mandibles, maa-illa, and ) 

 labium, united. f 



antenna. 



mandible. 



maxillary palpus, 

 labial palpus. 



antenna. 



maxillary palpus, 



labial palpus.- 

 maxilla. - 



SQUASH-BUG. 



BEETLE. 



MOTH. 



antenna. 



maxillary palpus. " 

 labium. 



HOUSE-FLY. 



FIG. G9. HEADS OF A FEW INSECTS SEEN FROM THE SIDE, SHOWING MOUTH-PAKTS, NAMED. 



67. Much more may be learned about the mouth-parts of 

 insects, and the pupils might attempt the separation of the 

 mouth-parts of such insects as the grasshopper, beetle, wasp, 

 and butterfly, sticking these parts, when separated, upon a 

 piece of white card, as shown in Fig. 68. 



