520 



REVISION OF THE GENERA COLPOCHILA, ETC. 



The following tabulation will I hope assist in the easy identifi- 

 cation of the species treated in the subsequent pages. 

 A. Antennae 8-jointed. 

 B. Prothorax in front and behind thickly clothed 



with very long seta? crinita, Burm. 



BB. Prothorax not as above ruficeps^ Burm. 



AA. Antennae 9-jointed. 

 B. Iridescent species. 

 C. Pygidiam nitid and more or less punctulate. 

 D. Puncturation of entire head even and close. 

 E. Clypeus unusually long, narrowing for- 

 ward, with almost straight sides punctiventris, Blackb. 



EE Clypeus normal hella, Blackb. 



DD. Puncturation of head behind much less 



close than of clypeus punctulata, Blanch. 



CC. Pygidium subopaque, minutely granulate 



or ruguiose. 



D. Sides of prothorax not sinuate behind middle. 

 E. Puncturation of prothorax not finer than 



of elytra solida, Blackb. 



EE. Puncturation of prothorax considerably 



finer than of elytra deceptor, Blackb. 



DD. Sides of prothorax strongly sinuate be- 

 hind middle indchdla, Blackb. 



BB. Non-iridescent species. 

 C. Head, prothorax, scutellum, &c., quite black, 



elytra pale testaceous brown Ucolor, Blackb. 



CO. Not coloured as hicolor. 

 D. Prothorax having a well-defined lateral 

 gutter with close set punctures which 

 bear long soft hairs. 

 E. Flabellum of antennae having more than 4 

 joints in both sexes. 

 F. Disc of prothorax with plentiful well- 

 defined puncturation. 



