THE HONEY BEE 65 



D. Mandibles flat, toothed on inner and outer sides. 



Rhynchitidae. 



DD. Mandibles stout, pincer-shaped Attelahidae. 



BB. Elytra with a very strong fold on the lower surface near the 

 outer margin. 



C. The last dorsal segment (pygidium) of the male divided 

 transversely, so that this sex appears to have one more dorsal 

 segment than the female. 

 D. Antennae with a ringed or solid club. 

 EE. Tarsi usually dilated, brushlike beneath. 

 F. Mandibles with a deciduous piece, which is lost soon 

 after emergence from the pupa state, and leaves a scar. 



Otiorhynchidae. 

 FF. Mandibles without accessory piece in the pupa state, 

 and therefore without a scar in the adult state. 



Curculionidae. 

 CC. Pygidium of both sexes undivided. 



D. Pygidium horizontal; tibiae usually strratt. . . .Scolytidae. 

 DD. Pygidium vertical or declivous ; tibiae not serrate. 

 E. Antennae geniculate ; labrum wanting ; last spiracle cov- 

 ered by ventral segments Calandridae. 



THE HONEY BEE 

 Apis melUiica 



General Features. — (i) The general characteristics 

 of the bee are the same as those of the other insects studied, 

 but there are certain specializations of structure that make it 

 a very peculiar animal. 



(2) Observe the covering of the entire animal. Note 

 the manner in which the thorax and abdomen are joined. 

 Is it like the grasshopper in this? Is it the thorax or the 

 abdomen that is modified ? Such a structure is called a 

 pedicel. 



STU. IN ZOOL. — s 



