1896.] of the Goleoptera of South Africa. 243 



with the disk impressed longitudinally on each side, apical part sub- 

 arcuate, truncate ; abdomen projecting. Length 7 J mm. ; width 

 3 J mm. 



Hah. Cape of Good Hope. 



Group LEBIID^. 



Synoi^sis of Genera. 



I. 



Prothorax with the median part of the base produced beyond 

 the posterior angles ; ligula longer" than the paraglossse ; labrum 

 moderately long ; fourth joint of tarsi incised or lobate ; last 

 joint of labial palpi securiform. 



Mentum without any median tooth ; claws not pectinate . . Singiliomimus. 



Mentum with a sharp median tooth ; claws pectinate . . . . PhlcBOzetus. 



Last joint of labial and maxillary palpi fusiform or slightly 

 truncate at the tip. 



Mentum with a median tooth ; labrum as long as broad ; 

 paraglossse as long as the ligula Lebia. 



Labrum longer than broad Matabele. 



Ligula longer than the paraglossse jPromecochila. 



Mentum without a median tooth ; elytra somewhat convex . . Lebistina. 



Ligula shorter than the paraglossse ; labrum long ; claws not 

 pectinate ; fourth joint of tarsi not incised. 



Mentum with a sharp median tooth ; median part of the 

 base of prothorax slightly produced behind ; palpi abruptly 

 truncate Arsinoe. 



Base of prothorax nearly truncate ; palpi rounded at the tip . . Lobodontus. 



II. 



Prothorax with the median part of the base not produced 

 behind beyond the posterior angles. 



Mentum with a median tooth ; claws not pectinate ; prothorax 

 straight laterally ; elytra twice as broad as the prothorax ; 

 paraglossse broad Thyreopterus. 



Labrum very long ; paraglossse narrow ; prothorax cordiform . . Catascopus. 



Mentum without any median projection ; claws pectinate ; 

 paraglossse longer than the ligula and surrounding it ; prothorax 

 broad, ampliate in the anterior part Coptodera. 



Paraglossse not longer than the ligula ; claws not pectinate ; 

 prothorax with the median part of the outer sides conical . . . , Pentagonica. 



Mentum with a slight median bifid projection ; paraglossse 

 not quite as long as the ligula ; claws not pectinate ; prothorax 

 not conical laterally Haplopeza. 



Gen. singiliomimus. 



Mentum without any median tooth or sinuation, the lateral lobes 

 acute, much slanting outwardly, the inner edge straight ; ligula 

 slightly longer than the paraglossse, which are narrower with the 



K 



