1900.] Catalogue of the Goleoptcm of South Africa. 213 



by Klug, however, the vertex is produced in a raised lamina dentate 

 in the centre and with the two angles produced into a short, dentiform 

 process higher than the median tooth and curving slightly inwards ; 

 in all probabihty the large development will prove to be identical 

 with that of the only female I have seen, and which is easily 

 distinguished by the thick spur of the anterior tibiae strongly curved 

 inwardly at tip. 



Female : One frontal carina only, vertex produced at base into two 

 short compressed horns, slightly incurved and slanting a httle for- 

 ward, and not as high as the abruptly slanting anterior part of the 

 prothorax the upper edge of which has a bi-tuberculate carinate 

 median ridge with a small tubercle on each side at a short distance 

 from it. 



Length 8 mm. ; width 5-5 J mm. 



Hab. Southern Rhodesia (Salisbury). 



Onthophagus venustulus, Erichs, 



Plate XXXV., fig. 41. 



Wiegm. Arch., 1843, i., p. 234, 2 



Fahr., Insect. Caffrar., ii., p. 305, ^ . 



Pale testaceous on the upper side and variegated with patches of 

 bronze or bronze green, under side bronze, legs testaceous; head and 

 prothorax densely pubescent ; head somewhat roughly punctulate in 

 the clypeus, sparsely punctured or smooth on the vertex, genae 

 rounded, clypeus elongate, obtuse, and deeply emarginate, almost 

 incised at tip, and with the angles of the emargination sharp and 

 recurved, frontal carina very little distinct in the male, but well 

 defined in the female ; prothorax hardly convex, ampliated laterally, 

 finely marginate all round, basal part rounded, it is covered with 

 scabrose punctures set moderately close to one another ; elytra 

 ampliato-ovate, narrowly punctato-striate, the striae geminate, in- 

 tervals plane, and having each two series of small, setigerous 

 punctures; pygidium deeply scabroso-punctate, very little pubescent; 

 metasternum punctulate, median longitudinal line not very distinct ; 

 inner part of anterior tibiae briefly spinose at tip in the male, apical 

 spur nearly straight in both sexes. 



Male : Vertex produced into a high, laminate carina, having on 

 each side a sharp, vertical, sub-cylindrical horn reaching as high 

 as, or a little higher than the top of the anterior part of the prothorax 

 which is sloping, but is not excavated nor impressed. 



Female : Vertex with a basal, arcuate, transverse laminate carina 



