208 Transactions South African Philosophical Society, [vol. xli. 



one of the same colour extending from side to side a little past 

 the middle, and dilated on the sides and at the junction with the 

 suture, the apical margin, and also occasionally the base, is suffused 

 with fuscous green ; pygidium very closely pitted ; metasternum 

 punctulate all over, median impressed line very indistinct. 



Length 6-7 mm. ; width 3|~4J mm. 



Hah. Southern Ehodesia (Salisbury). 



Onthophagus pyramid alis, Klug, 



Plate XXXV., figs. 12, 12a. 



Monatsb. Berl. Acad., 1855, p. 652; Peters' Eeis., 1862, p. 226, 



pi. xiii., fig. 11. 



Bronze on the upper side, under side darker ; head closely and 

 roughly granular and clothed with light bronze hairs, frontal carina 

 distinct, club of antennae flavous ; prothorax either straight laterally 

 in the higher development of the male or ampliate a little past 

 the middle in the lesser, marginate all round and with the median 

 part of the base only slightly aculeate, covered with equi- 

 distant, not very closely set granules ; elytra somewhat plane, a 

 little ampliate laterally past the shoulders, and gradually attenuate 

 from there to apex, the suture is not much raised, and the supra- 

 humeral callus is distinct, the striae are fine, geminate, slightly 

 punctate, the intervals are plane, and covered with fine scabrose, 

 slightly setigerous punctures turning to fine granules at the base 

 and on th^e sides, second interval much broader than the third, 

 except at apex where they are both of equal width ; metasternum 

 scabrose and with a distinct, median, longitudinal impressed line ; 

 apical spur of tibiae not thickened, and slightly curved inwardly at 

 apex in both sexes. 



Male : Prontal carina arcuate, vertex produced into a very high 

 arcuate lamina emitting two sub -recumbent, arcuate and moderately 

 diverging horns slightly bifid at tip, and not reaching the base of 

 the prothorax in the . higher development ; prothorax deeply and 

 very broadly excavated in the anterior part, and with the apical 

 part of the median excavation produced as a compressed, sub- 

 horizontal horn, sub-obliquely truncate at tip, and extending as 

 far as the base of the head ; the excavation is smooth, but the 

 compressed horn as well as the base of the broad carina on the 

 vertex of the head and also the basal part of the cephalic horns 

 are densely granulose. 



Female : Clypeus projecting slightly more than in the male, vertex 



