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



B'. Prothorax with a median vertical lobe, a lateral im- 

 pression and a supra-lateral one on each side. 



Clypeus triangular, tuberculate at tip ; head with a tri- 

 angular juxta-apical carina, and a transver.se ante-median 



*^"® auspicatum. 



A3. Anterior tibise seven-dentate. 



B3. Prothorax without any median impression. 



Head without any tubercle, basal angles of clypeus not 

 raised; prothorax very slightly depressed longitudinally 

 in the anterior part ". stcrcorosum. 



B-. Prothorax with a deep, median impression. 



Labrum distinctly carinate alongthe apical margin ; head 

 with an anterior median tubercle, and with the basal 

 angles of the clypeus raised; elytra wholly ferruginous consocium. 



Head with a median clypeal, bifid tubercle and a trans- 

 verse carina in front of it; posterior part of elytra black posticatum. 



B'. Prothorax with an elongate, median impression. 



Clypeus with a short, median tubercle, head simple. . . . pannosnm. 



A". Anterior tibiae nine-dentate. 



Head with a tri-dentate median carina; basal angles of 

 clypeus also sharply dentate; prothorax with a slight 

 anterior depression viactilicollc. 



Head with a clypeal, triangular ridge, extending from the 

 sharply aculeate basal angle of the clypeus, and dentate at 

 apex; posterior part with a distinct supra-basal ridge. . .. ornatellum. 

 A'. Anterior tibite ten-dentate. 



Head with the clypeal ridge reaching from side to side, 



anterior part of prothorax very slightly impressed . . . . rufotestaccum. 



BOLBOCERAS PANZA, Perins., 



Plate XXXVI., fig. 27 ; Plate XXXIX., fig. 2. 



Trans. Entom. Soc. Loncl., 1896, p. 159. 



Brick or ferruginous red, shining ; labrum very deeply and broadly 



emarginate ; clypeus sharply carinate diagonally, attenuate laterally, 



transverse at apex, angular but not dentate laterally close to the 



canthus, and having a sub-median, transverse, highly raised carina 



aculeate on each side, and slightly further I'emoved from the apex in 



the female than in the male; the whole surface of the head is 



roughly and very closely punctured; prothorax deeply and very 



closely punctured, strongly sinuate in the anterior part with the 



