INSECTA. 

 Fig. 176.— The Stages of Dragon-Fly. 



255 



Larva of Dragon-fly catching prey (a larval May-fly) by the labium . On right' 

 the perfect insect is emerging. 



Fig. 177. — The May-Fly (Ephemera vulgata). 



Order VI. — Orthoptei-a. 



The mouth parts are of the "biting" type; the first pair 

 of wings are chitinous and form covers for the second pair 

 which are membranous. The metamorphosis is incomplete 

 or absent. 



