XXX11 ANALYTICAL TABLE. 



PAGE 



B. Metathorax as in Section A, but the superior 



edges of its hinder plate not so much 

 elevated, no longer forming, in the 

 females, distinct teeth behind the post- 

 scutel, etc. ...... 2G5 



a. Metathorax excavated ; edges straight . 2G5 



b. Metathorax more flattened ; the superior 



edges roughened, not acute . . . 268 



C. Hinder plate of metathorax no longer mar- 



gined superiorly by sharp edges •, lateral 

 angles still existing ..... 270 

 2. Posterior plate of metathorax orbicular or more 

 or less rounded, not forming on each side 

 a distinct dentiform angle .... 281 



A. Posterior plate of metathorax still margined 



with sharp edges, salient in its superior 

 part, and forming on each side at the 

 summit a tooth or elevation, separated 

 from the post-scutel by a fissure (some- 

 times very small) ..... 281 



a. The concavity deep, excavated, with sali- 

 ent ridges. Abdomen conical ; its base 

 sharply truncate . . . . .281 



6. Posterior plate of metathorax less exca- 

 vated ; its marginal edges but slightly 

 salient, although still sharp. Abdomen 

 ovate-conical, slightly attenuated at base 285 



B. Posterior plate of metathorax no longer mar- 



gined with sharp ridges, and not forming 

 post-scutellar teeth .... 290 



a. Posterior plate of metathorax much exca- 

 vated, margined with salient, blunt, and 

 rough edges ...... 290 



6. Posterior plate of metathorax more flat- 

 tened; its margins rounded and punc- 

 tured 292 



Section II. — Body yet stubbed, not slender, nor cylin- 

 drical. Abdomen not conical, but still ses- 

 sile ; the 1st segment smaller than the 2d, 

 as strongly or more strongly punctured than 

 the 2d ; the 2d constricted at base to fit into 

 the first and more or less deformed ; having 

 its margin very strongly canaliculate and 

 refiexed, and more or less swelled before 

 the channel 297 



