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



briefly setulose along the anterior margin, moderately sinuate along 

 the base, and having in the median part one or three raised lines, as 

 well as a conspicuous lateral keel running alongside the outer 

 margin ; scutellum cordate, as broad as long, sharp at the apex ; 

 elytra elongated, very little ampliated laterally, and convex in the 

 anterior part only in the male, more ampliated and more convex in 

 the female, having on each side nine large sharp costae, and covering 

 only half the propygidium ; pygidium either very slanting or almost 

 vertical ; anterior part of metasternum and presternum produced into 

 a long spine-like, nearly horizontal process reaching as far as the 

 median part of the prosternum ; abdominal segments seemingly 

 soldered, but with the sutures deep ; anterior tibiae bi-dentate 

 outwardly and with a somewhat short inner spur ; intermediate and 

 posterior ones with a longitudinal groove on the outer face, and 

 with a more or less plainly obliterated, oblique, ciliate keel on the 

 posterior, the two apical spurs of which are very long and slightly 

 flexed, and more slender and sharper at the tip in the male than in 

 the female; tarsi moderately long, but longer in the male than in the 

 female, the joints are bristly underneath, and the last one is longer 

 than the others ; the claws long, strongly curved, and having in the 

 male a very minute tooth forming an angle at the base, and in the 

 female a very strong, median, vertical tooth. 



The livery of the three species included in this genus consists of 

 very dense white or occasionally flavescent ovate or sub-lanceolate 

 scales either covering the whole body with the exception of the 

 pectus, which is somewhat densely hairy or disposed in bands on 

 the prothorax and the interstices of the elytra. 



The genus seems to be restricted to the South African area. 



Key to the Species. 



A 2 . Pygidium strongly slanting backwards. 



B 2 . Clypeus emarginate on the centre. 



C 2 . Anterior tibia? uni-dentate in the male, bi-dentate 

 in the female. 



Head and prothorax with one median longi- 

 tudinal denuded raised line costipennis. 



Head and prothorax with three denuded longi- 

 tudinal raised lines albostriata. 



A 1 . Pygidium vertical. 



B r . Clypeus not emarginate in the centre. 



C 1 . Anterior tibiae bi-dentate in the male. 



