1902.] Catalogue of the Colcoptcra of South Africa. 851 



covered with dense, long, l)Uick l^ristly hairs, sulcate longitudinaUy in 

 the middle, with the furrow filled with greyish-white scales not very 

 closely set, but more numerous along the outer margin, especially in 

 the female ; scutellum scaly ; elytra elongate, very distinctly attenuate 

 laterally from the shoulders towards the apex, clothed with a very 

 short, slightly greyish pubescence, not dense enough to conceal the 

 somewhat shagreened background, and having along the suture a 

 partly obliterated series of remote ovate white scales, a few of which 

 are also sprinkled on the posterior part of the disk, each elytron has 

 two costules which disappear past the median part ; in the female the 

 sutural band of white scales is much more distinct, and there is a 

 similar one along the outer margin ; propygidium, pygidium, and under 

 side covered with closely set scales, white in the male, fiavescent in 

 the female ; anterior tibiae bi-dentate in the male, but with a very 

 small third, basal tooth, claws of anterior and intermediate legs 

 simple but distinctly cleft at the tip ; hind femora very robust, 

 simple, but with the trochanters produced into a long, sharp spine ; 

 hind tibiae carinate beneath, the carina sharp, strongly angular near 

 the knee, mucronate inwardly at apex, no apical spur ; claws of hind 

 legs single, simple. 



Female : Like the male, the hind tibiae, however, are not carinate 

 underneath, but the apices are as angular and mucronate as in the 

 male. v 



Length 7-7J mm. ; width 4 mm. 



Hah. Cape Colony (Worcester, Clanwilliam, Namaqualand). 



Gymnoloma tibialis, n. spec. 



Black, with the prothorax somewhat metallic, and the elytra 

 testaceous, not scaly on the upper side, with the exception of a few 

 scales on the sides of the prothorax and of the scutellum, but clothed 

 with dense scales and whitish hairs underneath ; clypeus triangular 

 and covered, like the head, with long hairs ; prothorax very densely 

 hairy, the hairs erect, closely and somewhat roughly punctm-ed, 

 deeply gi'ooved longitudinally in the centre ; elytra strongly attenuate 

 laterally from the base to the apex, and having on each side two 

 conspicuous longitudinal impressions separated by two costae, they 

 are deeply punctured, the punctures are somewhat scattered in the 

 anterior part, but denser and distinctly granulose behind, from these 

 punctures spring a very short, blackish bristle ; anterior tibiae bi- 

 dentate outwardly ; hind femora swollen inwardly in the median 

 part, obsoletely grooved underneath near the base, not dentate there 

 and sub-mucronate inwardly at the tip ; femora robust, and having 



