200 Transactions South Africcni Pliilosophical Societij. [vol. xii. 



excavation of the anterior part is sliallow, and the median tubercles 

 of the upper ridge do not project in the $ , nor in the $ where the 

 median ridge is replaced by two minute tubercles, and the tubercles 

 on each side of the upper ridge of the excavation are wanting, but 

 the distinctive characters are the punctures of the prothorax, w^iich 

 are regular, less closely set and not rugose, and the intervals of the 

 elytra, instead of being conspicuously rugose, have each two series of 

 slightly granulose setigerous punctures ; legs and under side as in 

 0. cretus. 



Length 4^-5 J mm. ; width 2f-3 mm. 



Hab. Natal (Newcastle, Frere), Transvaal (Potchefstrooui, 

 Lydenburg) . 



Onthophagus rAEUMNOTATUS, Pahr., 



Plate XXXV., fig. 30. 



Insect. Catfrar., ii., p. 279. 



Male : Head and prothorax fuscous bronze, elytra darker and less 

 metalhc, under side almost black ; head closely granular, densely 

 pubescent, froutal carina semicircular, clypeus also semicircular 

 and with the gense rounded, in the centre of the vertex there is 

 a very short conical horn ; antenna? fuscous ; prothorax not convex, 

 a,bruptly declivous in the anterior part which is not excavate, and is 

 surmounted by two bluntly conical tubercles set moderately close to 

 one another, '■■■ it is densely but briefly pubescent, and covered with 

 slightly elongate granules set close to one another but not contiguous, 

 the posterior part of the disk has a very slightly impressed smootli 

 line, the median part of the base, which is moderately rounded, is a 

 , little depressed ; elytra very ampliato-ovate, distinctly geminato- 

 striate, intervals plane and having each two or three series of small, 

 briefly setigerous granules, second interval a little wider than the 

 third, humeral callus hardly prominent, they are darker than the 

 prothorax, opaque, and have on each nine or ten pale testaceous 

 round spots mostly disposed along the outer margin, except two 

 which are in tlie centre; pygidium deeply and closely pitted, 

 pubescent, median part of pygidium deeply pitted: inner part of 

 anterior tibiffi briefly spinose at apex, apical spur nearly straight. 



Female : Entirely like the male ; the cephalic horn and the 

 prothoracic tubercles are similar, and the only distinctive character is 



* In the figui-c the clypeus is a little too elongate, and the frontal carina has 

 been omitted. 



