SPECIAL SENSE ORGANS 17 



the female at mating season. Minute structures found in the antennae 

 and the maxillary palpi are commonly the seat of the olfactory sense. 

 All insects have more or less specially developed parts for exercising 

 the sense of touch. The antennae, or " feelers," are primarily adapted 

 to serve this function, but hairs or bristles connected with sensory 

 nerves occur at various places over the body. This would be expected, 

 since the body is so completely covered with its armor of chitin. 



