70 



THE BEE-KEEPER S GUIDE ; 



ever contribute to our delight, and not sadden us with anxiety 

 and fear. 



The antennae (Fig. IS, a, a) are the horn-like jointed 

 organs situated between, or below and in front of, the large 

 compound eyes of all insects. They are sometimes short, as 

 in the house-fly, and sometimes very long, as in crickets and 

 green grasshoppers. They may be straight, curved, or 

 elbowed. In form they are very varied, as thread-like, taper- 

 ing, toothed, knobbed, fringed, feathered, etc. The antennae 

 of many Hymenopterous insects are elbowed (Fig. 18). The 

 long first joint in this case is the scape, the remaining joints 

 (Fig. 18, F) the flagellum. A large nerve (Fig. 18, n) and a 



Fig. 19. 

 h 



Antennal Ifairs. — Origbml. 



n Nerves. h Tooth hairs. 



c Cells. c, p Pits or pori. 



Microacopic Structure of Anteri' 

 tice^ after iSchieinenz. 



b Hairs ol" scape. 

 h, c Hairs of scape and flagellum. 



trachea (Fig. 18, t) enter the antenna. The function of the 

 antenna is now pretty well, if not wholly, understood. That 

 they often serve as most delicate touch-organs no observing 

 apiarist can doubt. Tactile nerve-ending hairs are often found 

 in great numbers. With the higher insects, like most Hyme- 

 nopterons, this tactile sense of the antennje is doubtless very 

 important. 



It is now fully demonstrated that the sense of smell is 

 located in the antennae. Sulzer, in the eighteenth century, 



