480 Transactions South African Philosoiohical 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 transverse ante-median 

 one 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 sterco7'Osiun. 



B=. Prothorax with a deep, median impression. 



Labrum distinctly carinate along the apical margin ; head 

 with an anterior median tubercle, and with the basal 

 angles of the clypeus raised ; elytra wholly ferruginous consociuvi. 



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. . . . pannosum. 



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 maculicolle. 



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 tibiae ten-dentate. 



Head with the clypeal ridge reaching from side to side, 



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



BoLBOCERAS PANZA, Pering., 



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



Trans. Entom. Soc. Lond., 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 removed 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 



