1900.] Catalogue of the Coleoptera of South Africa. 245 



and has at the apex of that faint impression a small, slightly conical 

 tubercle, the lateral supra- marginal fovea is quite obliterated ; 

 elytra moderately ampliate, narrowly geminato-striate, striae not 

 deeply punctate, intervals plane and filled with minute punctures, 

 second interval not wider than the third ; pygidium deeply and 

 closely punctured ; metasternum quite smooth in the centre and 

 deeply furrowed longitudinally especially in the centre ; apical spur 

 of anterior tibiae very short, inner part sub-spinose. 



Female unknown. 



Length 9 mm. ; width 5^ mm. 



Hah. Southern Ehodesia (? Zambesi and Limpopo Elvers), 

 Mozambique (Sena, teste Klug). 



The prothorax is not quite as much compressed diagonally in the 

 anterior part as in 0. plehejus, from which it is easily distinguished 

 by the frontal carina which is entirely absent in the last-named 

 species. 



Onthophagus cecesulus, Bates, 



Plate XXXVI., fig. 9. 



Entomol. Monthly Magaz., 1888, p. 238. 



0, obtusicolUs, Per., Trans. S. Afr. Philos. Soc, 1888, vol. iv., p. 98. 



Male : Coppery, coppery bronze, or fuscous bronze, with the elytra 

 darker than the head and prothorax, very briefly pubescent but 

 shining ; antennae fiavous ; head covered close to the base with very 

 closely set, transverse punctures forming interrupted folds along the 

 margin of the clypeus, genae a little angular, clypeus triangular, with 

 the apical part broadly recurved, but neither emarginate nor incised; 

 there is no frontal carina, but at the base of the vertex there is a very 

 short, triangular horn bending slightly forward, and hardly higher 

 than the recurved part of the clypeus ; prothorax highly raised, 

 sloping in front, deeply excavated on each side of the anterior part, 

 thus leaving in the centre a median sloping lobe with a sharp 

 tubercle on each side at the apex, it is marginate in front and 

 laterally, but not distinctly along the base which is rounded, and 

 it is covered with very closely set, very briefly setigerous round 

 punctures slightly scabrose on the sides ; in the minor development 

 the anterior part of the prothorax is not so much raised, and the 

 sub-lateral cavities in the anterior parts are not so deep, nor are the 

 tubercles of the median lobe so distinct ; elytra moderately ampliate, 

 narrowly and not deeply geminato-striate, intervals nearly plane 

 and having each three series of very closely set, slightly scabrose 



