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



the prothorax not wider, and about as wide as long, plane and 

 striolate ; propygidium wide, last abdominal spiracle spinose ; 

 pygidium rounded at apex ; anterior tibiae 5 and 3 dentate according 

 to the sexes ; body covered on the upper side with minute recumbent, 

 squamulose hairs. 



Key to the Species. 

 Dorsal part of elytra with series of whitish scaly hairs sebakitanus. 



Dorsal part of elytra with series of flavescent minute hairs, and a 



broad transverse band of yellow scales on each side bimaculatus. 



Stenovalous sebakuanus, n. sp. 



Male : Black, with the palpi and antennae flavo-rufescent, covered 

 with short, whitish, hair-like scales which are not sufficiently dense 

 to hide the teguments ; clypeus attenuate towards the apex which 

 is rounded, and not incised ; prothorax almost parallel, longer than 

 broad, and as long almost as the elytra, almost plane but sloping in 

 front, the anterior angles are sharp and strong and project con- 

 spicuously beyond the anterior margin ; the surface is strigillate 

 longitudinally, there is a longitudinal median raised line reaching 

 from apex to base, and the surface is beset with sub-erect, small 

 white scales ; scutellum densely scaly ; elytra parallel, slightly 

 longer than broad, truncate behind, plane, vertical laterally and 

 covering there the dorsal part of the abdomen ; they have on the 

 flat dorsal part and on the sides regular series of erect, hair-like 

 white scales ; propygidium uncovered, sharply dentate laterally ; 

 pygidium vertical, squamose ; anterior tibiae 5-dentate ; posterior 

 tarsi very long, the basal joint longer than any of the others. 



Female : Rufescent, with the head and prothorax black ; clothed 

 like the male with whitish hair-like scales, and smaller and less 

 parallel, the narrower prothorax is more attenuate laterally towards 

 the apex ; the elytra are narrowed behind, but they still cover the 

 dorsal part of the abdomen, and also almost the whole propygidium ; 

 the pygidium is sub-horizontal and vertically convex at apex ; tarsi 

 as long as in the male. 



Length 4 mm. ; width 2 mm. 



Ilab. Southern Rhodesia (Sebakwe). 



Stenovalgus bimaculatus, n. sp. 

 Plate XLVIL, fig. 14. 

 Black, with a piceous tinge, vertical outer side of elytra sub- 

 rufescent ; head with thick scales, clypeus with minute sub-navescent 



