344 Transactions South African Philosophical Society, [vol. xii. 



tooth or protuberance close to the anterior margin, * 



upper edge of lobe equally bi-dentate, anterior part 

 scabrose iyiteger. 



a3. Median lobe very deeply emarginate triangularly, not 



quadri-dentate, outer teeth divaricating. 

 }fi. Cephalic horn curved. 



Clypeus impunctate, anterior part of the prothoracic 

 median lobe and also the excavations almost im- 

 punctate, striae of elytra moderately deeply punctate, 

 intervals smooth orion. 



b^. Cephalic horn vertical. 



a^. Median lobe not emarginate, slightly bi-sinuate. 



Clypeus rugose, anterior part of median lobe and 

 also excavations punctate, dorsal part punctate 

 except for a broad, dorsal area miselhis. 



Prothorax covered with closely set, nearly contiguous, ^ 



foveolate puncbures (pi, xxxiii., fig. 9) I orpTiamis. ■ > j -r 



a^. Median lobe absent. 



Cephalic horn short, conical, anterior part of pro- 

 thorax retuse, bi-sinuate at apex cassius. 



D4. Apical spur of anterior tibise curved inwardly at tip. 



a3. Median prothoracic part quite vertical, not bi-lobate. . 



Cephalic horn fairly long, vertical, median lobe 

 deeply emarginate triangularly, outer teeth divari- 

 cating ; whole surface of thorax closely punctate, 

 intervals of elytra distinctly punctate (pi. xxxiii., -^^ 



fig. 4) [contractus] 



Cephalic horn vertical, short, compressed, median 

 lobe not much raised, bi-angular on each side of the 

 emargination ; prothorax closely granular perturbator. 



Cephalic horn long, incurved ; head and thorax closely 

 punctate, median lobe nearly straight, quadri-den- 

 ticulate ainyntoi\ 



a^. Median prothoracic part sloping, not bi-lobate. 



Cephalic horn hamate behind, median lobe with four 

 small teeth of equal size at tip ; prothorax and in- 

 tervals of elytra very deeply and closely pitted 

 (pi. xxxiii., fig. 8) victor ini. 



Cephalic horn bi-dentate behind at base, median lobe 

 with four teeth, the two median ones smaller than 

 the outer, anterior median part of prothorax hardly 

 punctate, dorsal part closely punctured subsideiis. 



