1900.] Catalogue of the Colcoptcra of South Africa. 175 



i-. Prothorax retuse o.nd distinctly bi-tuberculate in 

 front. 



Prothorax very closely granulate ; cephalic horn broad 

 at base and conical ; elytra pale testaceous and with 

 five round -black spots iircEstans. 



Prothorax closely punctured ; cephalic horn broad 

 at base and conical ; elytra greenish dark or bronze 

 (pi. XXXV., fig. 23) deterrens. 



^^ Prothorax not excavate ni the centre nor tuberculate. 



Cephalic horn triangular and short ; prothorax deeply 

 punctate except in the anterior part and on the sides 

 which are scabrose ; elytra flavescent red, and having 

 the suture and a broad, transverse, post-median 

 band reaching from side to side, fuscous . . . . ditus. 



a-. Cephalic horns long or moderately long, vertical or 

 sub-vertical ; prothorax retuse or impressed in front. 



h'-. Clypeus incised and with the angles of the incision 

 dentate and recurved. 



Cephalic horns dentate inwardly at base ; prothorax 

 scabrose and having a median, vertical ridge (pi. xxxv., 



fig. 38) meriis. 



* 



Cephalic horns slender ; prothorax punctate, deeply 

 impressed laterally, and with the median part pro- 

 duced in an arcuate lobe (pi. xxxv., fig. 35) . . . . hovinus. 



Cephalic horns compressed ; prothorax punctate, 



retuse and quadri-tuberculate at apex aiiriculatiis. 



Cephalic horns short, vertical ; prothorax retuse, not 

 impressed in the anterior part; elytra edged with a 

 very broad flavous band flavolimbatus. 



Cephalic horns vertical, united by a high carina at 

 base ; prothorax scabrose, slightly impressed in the 

 anterior part ; elytra pale testaceous, spotted with 

 bronze (pi. xxxvi., fig. 41) vemistitlus. 



Cephalic horn replaced by a short, transverse laminate 



carina ; no testaceous spots on the elytra versiLtus. 



Cephalic horns curved inwardly, bi-dentate inwardly 

 at base ; prothorax scabrose, slightly impressed in 

 the anterior part ; elytra fuscous, spotted with 

 testaceous red (pi. xxxv., fig. 36) sigillatus. 



Cephalic horns vertical, dentate inwardly at base ; 

 prothorax scabrose and punctate, retuse in front ; 

 elytra red with the base, the suture and two dis- 

 coidal patches on each side fuscous (pi. xxxvi. fig. 4). cxicjuiis. 



6^ Clypeus not incised at tip. 



