738 Transactions South African Philosophical Society, [vol. xh. 



strongly gibbose at the base and nearly horizontal ; the trochanters 

 are not spinose, the hind thighs are swollen and have a short but 

 sharp spine underneath at a short distance from the knee, the two 

 teeth of which are equal and not very distinct ; the hind tibiae are 

 scooped underneath, although not deeply, for half the length, 

 carinate from the median part to the apex, but the inner face is a 

 little concave, and the upper inner edge has above the muci'O, which 

 is not greatly developed, a small tooth not projecting further than 

 the mucro itself ; no a.pical spur ; hind claws simple, single. 



Length 4 mm. ; width li mm. 



Hah. Cape Colony (Graham's Town, Somerset East). 



Hetekochelus pygidialis, n. spec. 

 Male : Black, with the elytra light chocolate-brown, and sprinkled on 

 the upper side with small, elongate whitish grey scales which are not 

 contiguous but equi-distant and do not hide the colour of the integu- 

 ments, while underneath the whole of the abdomen and the pectus 

 are covered with contiguous longer scales, the edge of the propygidium 

 has a very narrow band of similar scales, l^ut the pygidium is quite 

 smooth and impunctate, and projects horizontally in the shape of an 

 ovate protuberance as long as the whole of the abdomen ; the head 

 and prothorax are scabroso-punctate, especially the former, the 

 clypeus of which is slightly emarginate at the tip while the two 

 median teeth are almost obliterated, in the median part of the 

 prothorax the basal furrow is very distinct, and the anterior and 

 lateral margins have a fringe of greyish not dense setae ; scutellum 

 somewhat long and as scaly as the elytra ; the latter are not costate, 

 but they have two slight longitudinal impressions ; the hind femora 

 are moderately robust, simple, without any spine to the trochanters : 

 the hind tibiae are equally convex inwardly and outwardly in the 

 basal part, but more compressed inwardly towards the apex, 

 sub-carinate underneath and very slightly dentate inwardly at the 

 top of the carina, near the knee, the inner apical part is sharply 

 angular but not mucronate, and there is no apical spur ; hind claws 

 simple, single. 



Female unknown. 



This species is evidently allied to //. orcopygus ; in which tlie 

 pygidium affects also an ovoid shape, which is, however, restricted 

 to the basal part only, whereas in H. pygidialis this development is 

 quite symmetrical, and while in the first-named species the pro- 

 pygidium is very broad, it is greatly reduced in width in H. pygidialis. 



Length 5^-5-^ mm. ; width 2i— 2f mm. 



Hah. Cape Colony (Port Elizabeth). 



