8 



GUIDE TO INSECTS. 



with their relationship as indicated in fig. 1, a copy of which is in 

 the frame which forms the cover of the case.'"' 



Fig. 4. 



Hornet (Vespa crabro), dissected. (1015.) 

 a, head ; b, prothorax c. mesothorax; d, metathorax; e, abdomen. 



The body of an insect is divided into three principal parts, 



* As insects fade when exposed to the light, many losing their colours in 

 a few months only, it is necessary to protect them from the light as much as 

 possible. The glazed frames which form the covers should be raised and 

 allowed to rest against the support on the top of the case, and be lowered 

 again when done with. 



