1900. J Catuloijue of the Colcujilcra of South Africa. 117 



Gkx. DREPANOCIITRUS, n. gen. 



Buccal organs of Drepunoccvus and Oniticdliis, but the mentuni 

 is very deeply and broadly furrowed longitudinally in the centre ; 

 head transverse, clypeus very little attenuate in front, eyes lateral 

 not showing at all on the upper side; antennye eight- jointed; prothorax 

 plane, nearly parallel, and without any lateral I'ound impression ; 

 scutellum elongate, narrow ; elytra parallel, plane, and wdthout 

 epipleura ; pygidium plane, vertical ; anterior femora very dilated, 

 compressed, and with the anterior margin sharply laminate ; anterior 

 tibitB quadri-dentate externally, the teeth strong, and not set close to 

 one another ; in the male they are prolonged inwardly in a falciform 

 mucro ; intermediate and posterior tarsi long, slender, and with the 

 l)asal joints slightly arcuate at base, a little longer than the three 

 following, and not thickened ; prosternum sharply carinate ; meso- 

 sternum invisible, metasternum nearly plane but slightly carinate 

 longitudinally in the centre. 



This genus is created for OniticcUus ainhiguus. The sculpture 

 of the prothorax, elytra, and pygidium approximates to that of 

 Drcpanoccrus from which it is readily separated by the eyes which 

 are not visible on the upper side, and the presence of a scutellum. 

 The sheaths of the penis of the male ai'e similar in shape to those 

 of OniticcUus. 



Drepanochirus ambiguus, Kirby, 

 Zoolog. Journ., iii., p. 522 ; Lacord., Gener. Atl., pi. xxvii., fig. 6. 



D. imprcfisus, Cast., Hist. Nat., ii., p. 92, pi. vi., hg. 2. 

 D. tro(jiforuiis,'Roth.., Wiegm. Arch., 1851, i. p. 129. 



Black, covered with a chocolate colour squamose tomentum ; head 

 with the clypeus dipping at apex, slightly emarginate, the angles of 

 the emargination are sharp and even recurved in the female, and 

 there are two small lateral teeth next to the genas, the surface is 

 divided in live moderately broad areas by carinate, squamose ridges ; 

 prothorax nearly parallel, a little declivous at apex, plane, and 

 divided in eighteen areas by squamose reticulate carinie, there is no 

 lateral puncture or round impression, and the areas are very deeply 

 and closely punctured ; scutellum narrow, sub-parallel and aculeate 

 at tip; elytra parallel, plane, with the humeral callus well developed 

 and quite lateral, truncate at apex, broadly striate, the striae dis- 

 tinctly foveolate, and the intervals plane except the suture which is 

 raised, and the fourth and seventh intervals which are sharply carinate 

 and setulose, at apex the setffi become fasciculate on the suture. 



