900.] Catalogue of the Coleoptera of South Africa. 123- 



Male : Clypeus sub-obtusely triangular, clypeal carina extending 

 to over one half of the width, frontal ridge very much raised and 

 curved laterally as far as the edge of the base which is sub-carinate- 

 and has a short, sharp triangular tubercle in the centre ; prothorax 

 canaliculate from the base to near the median part, the end of the 

 groove limited by a very small tubercle ; anterior tibiae ending in 

 a sharp inward tooth slightly curving downward at tip, and having- 

 beneath a distinct laminate ridge, and a little lower down a vertical 

 spine in a line with the second basal outer tooth ; intermediate 

 tibiae produced at a short distance from the knee into a large 

 quadrate laminate process the anterior angle of which is very 

 sharp and projects a little ; anterior femora very thick, their anterior 

 margin has a very small spine curving outwardly and situated near 

 the apex, the posterior margin has a very conspicuous, broad^ 

 sub-lamelliform vertical tooth at about the median part ; prosternum 

 produced beyond the coxae in a long process broadly bifid at tip, 

 and more or less anchor-like ; intermediate femora very thick and 

 emarginate at tip underneath, posterior ones with a sharp and long- 

 horizontal spine on the upper side ; posterior tibiae dilated triangu- 

 larly from a short distance from the knee, and having inwardly 

 a sharp lamina not quite as broad as the one on the intermediate 

 ones, and also very little angular at tip. 



Female : Clypeus rostrate, sculpture of head similar to that of 

 the male, and carinae similar, but the edge of the base is produced 

 in a trifid carinate process with a distinct ridge at the base of it ; 

 the prothorax is shorter and rather deeply excavated in the middle, 

 and the excavation is clothed with fulvous hairs ; the elytra are as in 

 the male ; the pygidium is more granulate ; the anterior tibias are 

 strongly quadri-dentate outwardly and have an horizontal spur 

 inwardly, but are neither laminate nor dentate beneath ; the median 

 femora are not emarginate at tip, but the intermediate and posterior 

 tibiae are gradually ampliated triangularly inwardly from a short 

 distance from the knee ; the posterior femora have no spine on the 

 anterior edge, and the punctures on the intervals of the elytra are 

 a little deeper than in the male. 



Length 25-36 mm. ; width 12-17-5- ™^- 



Hah. Damaraland, Ovampoland, Southern Ehodesia (Limpopo 

 and Zambesi Eivers). 



Onitis audens, n. spec. 



Black, with a slight metallic sheen; head closely punctured, the 

 punctures scabrose ; x^i"othorax covered with small granules equally 



