1907.] Catalogue of the Colcoptera of South Africa. 367 



C. Antennal club of <s not as long as the pedicel. 



D 6 . Outer angles of clypeus sharply dentate, the 

 centre of the anterior margin produced into 

 a recurved bi- or tri-fid horn in the <s . . . . Ceratorrhinii. 



E. Sternal process strongly projecting beyond 

 the coxae. 



P. Base of prothorax sinuate or arcuate 

 above the scutellum. 



a 2 . Scutellum not grooved laterally. 



b-. Head of j with two hamate teeth 

 near the vertex. 



c-. Apical joint of fore tarsi pubescent 

 underneath in the <? . 



d-. Inner part of anterior tibise den- 

 ticulate in the s . 



Mesosternal process horizontal, tri- 

 angularly produced, inner maxillary 

 lobe simple, upper lobe styliform, 

 not hooked at tip in either sex . . Dicranorrhina. 



Mesosternal process truncate at 

 apex, maxillary lobes simple in 

 both sexes Rumania. 



d 1 . Inner part of anterior tibise of i not 

 denticulate. 



Mesosternal process bluntly round- 

 ed at apex, both maxillary lobes 

 hamate, more strongly so in the ? 

 than in the <? ; basal anterior tibise 

 densely pubescent in the s from the 

 base to half the length Cheirolasia. 



C 1 . Apical joint of fore tarsi not pubescent under- 

 neath in the $ . 



Mesosternal process arcuate at apex, maxillary 

 lobes simple in the $ , upper one strongly hamate 

 in the ? Amaurodes. 



a 1 . Scutellum grooved laterally. 



b'. Head of <? without hamate teeth near the 



vertex. 



c 2 . Apical joint of anterior tibise glabrous under- 

 neath in the s • 



Mesosternal process horizontal, triangularly 

 produced ; maxillary lobes simple in the <r , 

 upper one strongly hamate in the ? . , . . Etidicellu. 



