44 



The Form of Insects 



bottom of the series which stretches parallel to, and 

 about as far as, the longer axis of the drum. At the 

 upper end of the ridge is a special group of nerve 

 endings (fig. 34 /. 0.), stretched between points of the 

 skin of the leg and connected with nerve-cells and 

 fibres. Above the drum are two groups of elongated 



Fig. 33. — A. Sensory pits on feeler of Aphid (after Smith). B. smell-organ in 

 Chafers. C. in Wasp (after Hauser). D. a. leg of termite ; b. sensory pits in 

 foot ; c. chordotonal organ (after Stokes). E. F. taste-organs in maxillae of 

 Wasp (after Will). G. smell-organ of Locust (after Hauser). /. smelling- 

 organs at tip of Ant's feeler (after Lubbock), and A', on feeler of Bee (after 

 Cheshire). From Riley, Insect Life, vol. 7. ' 



rods (fig. 34 J-. /. 0. 1 , 2) stretched across within the limb 

 and connected with nerve-cells \ from the cells of the 

 lower group fibres pass to the tympanal nerve (fig. 34 

 /. ;/.) which receives also the nerve-fibres from the 



