•206 Transactions South African Pliilosopkical Sociefi/. ivoL. xii. 



the gentc are more inflated and rounded, the clypeus is more 

 attenuate laterally and more obtuse at the tip, which is also a 

 little more recurved, the ceplialic horn is more broadly laminate, 

 less attenuate towards the median part of the length, and curves 

 more strongly forward from thai point; the rest is as in 0. ebcniis. 



In both this and the preceding species the punctures or the 

 granules are occasionally less numerous in the second intei'val tlian 

 in the others. 



Lengtli 10-101 mm. ; width o^ mm. 



Hah. Southern Ehodesia (Salisbury). 



Onthophagus pk^stans, n. spec. 



Male : Head and prothorax coppery green, shining, briefly 

 pubescent, elytra pale testaceous and having five round l)lack or 

 fuscous spots on each side, under side bronze ; antenmc fuscous ; 

 head very closely shagreened, genac rounded, bulging a little ; 

 clypeus a little ampliate near the geua3, elongated diagonally, apical 

 part very distinctly recurved and slightly emarginate, no frontal 

 carina, vertex produced at liase in a horn broadly laminate at base 

 and cylindrical at tip, vertical, but not rising as high as the anterior 

 apical part of the prothorax wdiich is convex, rounded laterally, 

 marginate all round with the median part of the base rounded, 

 and covered with contiguous granules, it is al^ruptly retuse in the 

 anterior part, not excavate but has on the top of the declivity two 

 sharp tubercles separated by a moderately deep sinuation, and it 

 is distinctly furrowed longitudinally in the posterior median part 

 of the disk ; elytra ampliato-ovate, narrowly geminato-striate, striie 

 punctate, intervals nearly plane and filled with closely set setigerous 

 punctures, second interval very slightly wider than the third, 

 humeral callus not very distinct ; pygidium very closely punctulate, 

 Imefly pubescent ; metasternum very closely punctm-ed in the middle, 

 median longitudinal line deep and very distinct; inner part of 

 anterior tibiae non-spinose inwardly, apical spur produced obliquely 

 inwardly, moderately slender, and curving downward. 



Length 6^-7 mm. ; width 4-4^ mm. 



Hab. Southern Ehodesia (Salisbury). 



Onthophagus deterkens, n. spec, 

 Plate XXX v., fig. 23. 

 Very dark green, nearly l)lack, or bronze green, with a coppery 

 tinge on head and prothorax, moderately shining, and briefly l)ut 



