1904.] Catalogue of the Coleoptera of South Africa. 283 



long, moderately convex, bulging laterally in the median part and 

 with both angles sharp ; scutellum somewhat short, nearly semi- 

 circular ; elytra elongated, covering the greater part of the long 

 and broad propygidium, slightly ampliated laterally at about the 

 median part, and having a long supra-marginal impression as a 

 continuation of the humeral callus, the posterior calluses are very 

 conspicuous ; pygidium strongly slanting ; abdominal segments fused 

 but with the suture well-defined ; metasternum with a median longi- 

 tudinal line and produced as a blunt triangle between the trochanters 

 of the intermediate femora ; anterior tibiae bi-dentate outwardly, and 

 having a sharp, slender inner spur, intermediate and posterior ones 

 with a very slight oblique keel, apical end of hind tibiae very little 

 dilated, spurs more slender and sharper at the tip in the female than 

 in the male ; tarsi slightly longer in the male in the anterior and 

 intermediate legs, and shorter in the posterior, shorter in all the 

 legs in the female ; claws long, divaricating, angular underneath 

 at the base, and with a sharp, vertical post-median tooth in both 

 sexes. 



The species included in the genus are wholly covered with con- 

 tiguous, lanceolate greyish- white, or sub-navescent scales ; some of 

 them have one or more lateral rows of very distinct white scales, 

 larger than those forming the vestiture. This character has been 

 made use of for differentiating some species, but it seems to me to 

 be somewhat variable. 



The genus is represented in Nyassaland ; German East Africa ; 

 Cameroon and Lower Congo. 



The South African species are captured from November till end 

 of January. 



Key to the Species. 



A 2 . Elytra without series of remote, white scales. 



Pygidium moderately elongated in both sexes and wider than 



long at the base rnashona. 



A 1 . Elytra with series of remote, white scales. 



Pygidium strongly elongated, not wider at the base than 



long .. .. anatina. 



Pygidium moderately elongated in both sexes : 



Elytra plainly costate lepidota. 



Elytra not costate tschindeana. 



