Blatta. HEMIPTERA, 



97 



The elytra and wings are extended, 

 fmooth, and femi- coriaceous, or of a fub- 

 ftance fomewhat like vellum. 



The thorax is rather flat, of an orbicular 

 form, and margined. 



The feet are curforii, or made for run- 

 ning. 



The abdomen is terminated by two little 

 appendices, like horns. 



To the above characters of the Blatta we may 

 add, that the mouth is armed with jaws, and 

 furnilhed with palpi \ that the antennas in mod 

 fubjecls are as long as the body, and that the 

 abdomen is as broad as the thorax. 



The upper wings crofs over one another, 

 above the abdomen, and are much ftronger 

 thaq the under ones, which laft, according to 

 Schseffer, are folded j in fome fubjects, how- 

 ever, they are extended like the elytra. 



The tarfi of the fore feet have five joints, thofe 

 of the hindmoft have only four. 



Geoffrey and Schseffer obferve, that the horns 

 which terminate the abdomen of the Blatta, are 

 wrinkled or furrowed tranfverfely. 



G The 



