44 



ELEMENTARY ENTOMC )L( )GY 



considered probably auditory. In male mosquitoes, and probably in 

 some other forms, the antennae have an auditory function which 

 enables them to find the females, as is shown by their vibrating in 

 unison with a tone produced by a tuning fork of the same pitch 

 as that made by the female with her wings. 



a 



Fig. 53. Female mosquito 



Showing auditory hairs (ah] on the 

 antennae. (After Jordan and Kellogg) 





FIG. 54. Diagram of longitudinal section 

 through first and second antennal segments 

 of a mosquito (Mochlonyx culiciformis}, male, 

 showing complex auditory organ composed 

 of fine, chitinous rods, nerve fibers, and nerve 

 cells. (Greatly magnified) 



(After Child, from Kellogg) 



