INS E C TS, 



ORDER 



HEMIPTERA. 



BLATTA. COCKROACH. 



Generic Character. 



Caput inflexum. 

 Antenna setacese. 

 Al<e planae, subcoriaceae. 

 Thorax planiusculus, orbi- 



culatus, marginatus. 

 Pedes cursorii. 

 Cornicula duo supra cau- 



dam. 



TH: 



Head inflected. 

 Antenna setaceous. 

 Wings flat, subcoriaceous. 

 Thorax flattish, orbicular, 



margined. 



Feet formed for running. 

 Hornlets two over the tail. 



[IS is a genus containing many very destruc~ 

 tive and disagreeable insects, and which form one 

 of the principal inconveniences of the hotter 

 climates. They devour various animal and vege- 

 table substances, and some species are of a highly 

 unpleasant smell, which is apt to remain on such 

 v. vi. p. i. 8 



