ORTHOPTERA. 265 



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 furnished 

 with two appendages which meet like forceps ; nocturnal 

 insects, feeding on vegetables. Forficula, the earwig, its 

 wing is represented at page 11, Labia, Labidura. 



Crickets or Achetites. Antenna very long, slender, and 

 composed of many joints; fore wings short, coriaceous, 

 one partially covering the other, not used in flight ; hind 

 wings folded longitudinally, and projecting beyond the fore 

 wings; hind legs incrassated, formed for leaping; tarsi 

 three-jointed: nocturnal, subterranean insects. Gryllo- 

 talpa, represented on the opposite p3Lge 9 Acheta, represented 

 in all its stages at page 73. 



Grasshoppers or Gryllites. Antenna very long, slender, 

 and composed of many joints ; fore wings coriaceous, as 

 long as the hind wings, which are folded longitudinally be- 

 neath them; hind legs incrassated, formed for leaping; 

 tarsi four-jointed ; female furnished with an exserted ovi- 

 duct : diurnal ; feed on vegetables. Gryllus. 



Locusts or Locustites. Antenna short, incrassated to- 

 wards the middle or extremity, consisting of about ten joints ; 

 fore wings coriaceous, generally as long as the hind wings, 

 which are folded longitudinally beneath them ; hind legs 

 incrassated, formed for leaping ; tarsi five-jointed ; diurnal : 

 feed on vegetables. Locusta, Gomphocerus, Acrydium. 



Cockroaches or Blattites. Antenna very long, filiform, 

 tapering, and many-jointed ; head bending beneath the 

 prothorax ; fore wings somewhat coriaceous, horizontal, 

 one folding over the other, covering the hind wings, which 

 are folded beneath them ; legs alike in structure ; tarsi five- 

 jointed: nocturnal; voracious; omnivorous; run rapidly; 

 fly badly ; do not leap. Blatta. 



