588 Transactions South African Philosophical Society, [vol. xiii. 



part produced into a long, sharp horn sloping backwards, triangularly 

 laminate for half the length, slender and acute thence; genae wide, 

 upper part of the eyes very narrow ; prothorax with a marginal fold 

 all round, quite rounded laterally behind, impunctate and with the 

 median part depressed from the anterior margin to two-thirds of the 

 length ; elytra shorter than the prothorax, punctate striate with 

 the intervals plane and impunctate ; pygidium much broader than 

 long, faintly punctulate, glabrous ; sides of the metasternum and 

 episterna with scattered piligerous punctures ; abdomen punctulate 

 laterally along the edge of the segments, femora with only a few 

 setigerous punctures ; anterior femora tri-dentate outwardly and not 

 distinctly serrate above the teeth, inner spur of anterior tibiae 

 strongly bent inwardly at tip. 



Length 10 mm. ; width 6J mm. 



Hab. Southern Ehodesia (Umtali). 



Onthophagus albipennis, n. sp. 



Dark bronze, shiny, glabrous ; elytra very light straw-colour with 

 the suture dark bronze, antennae fuscous ; clypeus rounded with 

 the anterior part deeply, arcuately scooped but with the angles of 

 the projection not projecting although sharp, margin slightly 

 reflexed, genae projecting but not angular, in the anterior frontal 

 part is an arcuate carina, and between this one and the vertex 

 proper, and equi-distant from both, is another arcuate carina, the 

 centre of which is moderately highly dentate, and the ends set 

 behind the eyes, the clypeal part is deeply and somewhat coarsely 

 punctate on the sides, and so are the genae, the space between the 

 carinae and the vertex is weakly and somewhat remotely punctu- 

 late ; prothorax simple, with the sides not sinuate, the basal angle 

 absent, the whole base marginate, somewhat plane on the upper 

 side, and with no distinct longitudinal sulcus or depression in the 

 middle of the posterior part, the whole surface is covered with 

 moderately fine round punctures separated from each other by a 

 smooth space about equal to their own diameter ; elytra plainly 

 punctate striate with the dorsal intervals of equal width, smooth and 

 plane ; pygidium with the basal margin broadly sub-triangular, 

 glabrous and covered with punctures that are deeper than those 

 on the prothorax, but equally distant from each other ; inner angle 

 of anterior tibiae strongly mucronate, spur directed outwards. 



Length 3f-4 mm. ; width 2 J mm. 



Hab. Cape Colony (Uitenhage). 



Closely allied to 0. flavipennis, Fahr. (Catal. i., p. 231), but in that 

 species the prothorax is almost completely smooth, 



