[5* ] 

 vex-, their inferior one concave. When 

 the infecl: flies they are extended, and ' 

 fhut when it refts, clofing together, and 

 forming a Iongitudinal future down the 

 middle of the back, as in the Coleoptera, 



They are of various fhapes. 



. Abbrevlata r when fhorter than the 

 Abdomen. 



Truncata.1 when fhorter than the Ab- 

 clomen, and terminating in a tranfverfe 

 line. 



Fajiigiata, whenof equal, orgreater 

 length than the Abdomen, and termi- 

 natins m a tranfverfe line. 



Serrata, when the exterior margin 

 towards the apex is notched_orferrated ? 

 as in fome of the Bupreftes. 



Spinofa, when their furfaoe is cover- 

 ed with fharp points, or prickles. 



Scabra, when their furface is fo un- 

 even as to grate againfl the flngers. 

 < - H 2 Sirlata r 



