CLASSIFICATION OF INSECTS. 239 



CHAPTER VI. 



OF THE CLASSIFICATION OF ORTHOPTERA. 



786. THE metamorphosis of Orthoptera is iso- 

 morphous. Larva resembling the imago in structure, 

 appearance, mode of feeding, &c. wings only being 

 wanted. Pupa, or quiescent state, none. Imago 

 with the parts of the mouth fully developed ; 

 labrum large and quadrate ; mandibles strong, 

 bony, masticatory, and moving horizontally; 

 maxillae with feelers, and a distinct, ex articulate, 

 palpiform galea ; fore wings coriaceous, little used 

 in flight ; hind wings longitudinally folded ; flight 

 weak and badly sustained. 



787. Earwigs (Forficulites). The antennae are 

 many-jointed, moniliform, and decrease in size to 

 the extremity ; the fore wings square, coriaceous, 

 meeting with parallel edges, very short, and not 

 used in flight ; the hind wings ear-shaped, folded, 

 and projecting beyond the fore wings ; hind legs 

 not formed for leaping ; tarsi three-jointed ; telum 



