CLASS INSECTS. 



401 



them are remarkable for the elongation of their body and for 

 the extreme development of their posterior limbs, which 

 makes them leaping animals. 



Fig. 383. Locust. 



Fig. 384. Cockroach. 



The locusts and crickets (Fig. 343) are the principal repre- 

 sentatives of this group : but in it are also arranged the 

 mantis (Fig. 346), the phyllis (Fig. 386), the grillon 



Fig. 385. House Cricket. 



(Fig. 385), the courtiliere (Fig. 345), the cockroach (Fig. 384), 

 and the forficula? (Fig. 351). 



541. The neuroptera are distinguished from other mas- 

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