668 Transactions South African Philosophical Society, [vol. xiii. 



Length 7 mm. ; width 4 mm. 



Hah. Transvaal (Zoutpansherg, Shilouvaue). 



To follow 77. sulphur eus, Cat. i., p. 726. 



Heterochelus molestus, n. sp. 



Male : Colour, shape, and vestiture of H. shilouvanus, from which 

 it differs in the absence of the trochanterine spine of the hind femora 

 and the vestiture of the pygidium, which is velvety black with a 

 triangular apical patch of yellow scales, the shape of the tibiae 

 is, however, similar to that of H. shilouvanus ; the elytra are 

 equally highly costate, but they, and also all the legs, are reddish ; 

 outer claw of hind tarsi simple, inner one half the size of the outer 

 and cleft. 



Female unknown. 



Length oh mm. ; width 3 mm. 



Hah. Transvaal (Pietersburg). 



Heterochelus karrooanus, n. spec. 



Male : Black, almost opaque, and very briefly pubescent on the 

 upper side, clypeus sharply tri-dentate, the short pubescence black ; 

 prothorax very closely punctate, grooved longitudinally in the centre 

 and having a narrow margin of yellow, small, ovate scales ; scutellum 

 scaly ; elytra almost without any pubescence, broad at the base, 

 short, non-costate and bearing on each side a juxta-sutural broad 

 band of small ovate yellow scales reaching from base to apex, and 

 a parallel dorsal one reaching from the base to the median part 

 only ; propygidium with an apical transverse band of yellow scales ; 

 pygidium velvety black suffused at apex with a few yellowish scales ; 

 hind femora very robust, scabrose, armed underneath with a sharp, 

 horizontal trochanterine spine and not dentate inwardly at apex ; 

 tibiae deeply grooved underneath at the base on each side of the 

 knee, broadened and parallel there for all the length, pluri-denticu- 

 late and with the apical inner angle produced into a long hamate 

 mucro ; hind tarsi compressed, glabrous, bristly underneath at the 

 joints, inner claw long, simple, outer one half the length of the inner 

 and cleft ; sides of abdomen clothed with yellow scales, the whole 

 sternum with whitish ones. 



Female : Black like the male, but densely pubescent on the head 

 and prothorax, under side and legs ; on the elytra are two bands of 

 yellow scales disposed as on the male, and the apical part of the 

 pygidium is also suffused with flavescent scales. 



This species is closely allied in build and vestiture to H. chiraij- 



