1908.] Catalogue of the Coleoptera of South Africa. 637 



Clypeus with a median and a lateral tooth on each side of 

 the anterior frontal part ; prothorax impressed rather than 

 excavate near the apical margin, a smooth arcuate space 

 above the impression ; punctures on the sides round, not set 

 very close to each other disparile. 



A 4 . Anterior tibiae 6-dentate. 



a. Prothorax depressed on the anterior part. 



Clypeus with an anterior frontal median tubercle trian- 

 gularly raised on each side of the anterior part of the gens, 

 anterior impression of the prothorax, narrow, elongate, punc- 

 tures moderately remote laterally e.rasperans. 



Clypeus with three high, sharp teeth ; anterior impression 



of the prothorax semicircular indigum. 



A 3 . Anterior tibiae 7-dentate. 



ii-. Prothorax impressed in front. 



Clypeus with a very minute tubercle on the edge of the 

 clypeus, margin rerlexed close to the genae ; impression of 

 prothorax impunctate, punctures on sides round and only 

 moderately closely set, a broad, smooth band along the 

 whole base matahele. 



a 1 . Prothorax not impressed in front. 



Labrum plainly carinate transversely in the centre, anterior 

 frontal part with an arcuate ridge reaching from side to side, 

 apex with a short, transverse ridge sebakuense. 



A 2 . Anterior tibiae 8-dentate. 



Prothorax not excavate ; median frontal part with a short, 



transverse sub-bi-dentate ridge, angle of genae slightly recurved . . arribiguum. 



A 1 . Anterior tibiae 9-dentate. 



Totally black ; anterior frontal part with a triangular ridge 

 dentate in the centre and on each side close to the genae ; apex 

 with a long transverse ridge nigrum. 



BOLBOCERAS CAPICOLA, n. Sp., 



PI. XLVIIL, figs. 7, 8, 9. 

 Male : Brick-red with the prothorax and tibiae somewhat infus- 

 cate ; antennae brick-red ; glabrous on the upper side, clothed with 

 long, flavescent hairs underneath ; labrum notched in the centre, at 

 the base of the labrum is a vertical wall-like ridge extending from 

 side to side, and the upper angle of which is produced into a vertical 

 tooth as high again as the carina itself, the frontal part at the back 

 of the ridge is almost parallel, only slightly wider than the ridge, and 

 depressed from there nearly to the apex where there is a small, 

 median tubercle, the surface is closely but somewhat obsoletely 

 punctate ; prothorax nearly retuse in front, and having there two 



