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



tooth or protuberance close to the anterior margin, 

 upper edge of lobe equally bi-dentate, anterior part 

 scabrose integer. 



0.3. Median lobe very deeply emarginate triangularly, not 



quadri-dentate, outer teeth divaricating, 

 is. Cephalic horn curved. 



Clypeus impunctate, anterior part of the prothoracic 

 median lobe and also the excavations almost im- 

 punctate, striae of elytra moderately deeply j)unctate, 

 intervals smooth or ion. 



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 misellus. 



Prothorax covered with closely set, nearly contiguous, 



foveolate punctures (pi. xxxiii., fig. 9) or2)hanus.^^(S 



a^. Median lobe absent. 



Cephalic horn short, conical, anterior part of pro- 

 thorax retuse, bi-sinuate at apex cassius. 



D*. 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 . . . . . . jperturbator. 



Cephalic horn long, incurved; head and thorax closely 

 punctate, median lobe nearly straight, quadri-den- 

 ticulate amyntor. 



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 subsidens. 



