.32 



THE HEAD AND THORAX. 



We will take fig. 1 first, and begin at the top. 

 d d are the palpi j and between the large, protu- 

 berent compound eyes which project from the 

 sides of the head, are the little simple eyes called 

 calli. These are shown at c c. 



The thorax is divided into three portions. The 

 first is called the prothorax, and the two lobes of 

 its collar are seen at a a; the middle part or meso- 

 thorax is shown at 6 ; the last portion or meta- 

 thorax is shown at e, and the scutellum at/. 



Kg. 2 gives the parts of the head on an en- 

 larged scale. In the middle, at t, is the tongue, 

 or proboscis. At either side of the tongue are the 

 palpi, h h, and at g g are the cavities into which 

 are inserted the bases of the antennae. 



