1902.] Catalogue of the Coleoptcra of South Africa. 683 



parallel, strongly dentate at apex ; prothorax distinctly narrowed 

 diagonally in the anterior part, thence sub-parallel for three-fourths of 

 the length, deeply pitted, clothed with slightly flavescent hairs; 

 scutellum long, sharp, longer than broad and set with dense scales ; 

 elytra very well developed at the shoulders and gradually attenuated 

 laterally from there to the apex where they are less than half the 

 width of the basal part, they have on each side three somewhat 

 deep longitudinal furrows which reach barely to two-thirds of the 

 length and are filled with the appressed scales ; pygidium vertical, 

 abdominal segments not constricted in the centre and covered 

 with yellow scales ; pectus clothed with flavescent hairs ; anterior 

 tibige tri-dentate, the two apical teeth are slightly connate at the 

 base and the basal tooth is as strong as the other two, but is set 

 somewhat far from them ; the hind femora are greatly developed and 

 simple, the tibiae are very swollen but narrow^er at the apex than at 

 the base, simple, with the apical spur very distinct ; the four basal 

 joints of the tarsi are distinct but fused, transverse and angular 

 inwardly, the fifth joint is very massive, curved and uni-dentate 

 near the base, the claw is as long as the fifth joint, and simple ; the 

 female is like the male, but less robust, the scales are a deeper 

 yellow, and the legs are red. 



Length 9-10^ mm. ; width 6i-7| mm. 



Hah. Cape Colony — locality unknown. 



My examples w^ere collected by Drege. 



Pachycnema obscurepuepueea, De Geer, 

 Mem. Ins., vii., p. 646, pi. xlviii., fig 



't"' ?W. xur, ftV^ ■ 



P. maculata, Fab., Syst. Entom., i., 2, p. 123. 



P. crassipes, Fab., Syst. Entom. Append., p. 813. 



P. crassipes, Oliv., Ent., i., 6, p. 68, pi. vii., fig. 62. 



P. crassipes, Lacord., Atlas, pi. xxix., fig. 1. 



The description of P. alternans applies very nearly to this species 

 which is, however, smaller, and is therefore comparatively less robust ; 

 the colour, including that of the hind legs, is entirely black in the 

 male, but the elytra and also the hind legs are red in the female, and 

 the basal tooth of the anterior tibiae is not quite so remote ; the 

 scales are white in the male and yellow in the female, the median 

 longitudinal band of the prothorax and the four small spots are 

 similar, but at the base of the elytra there are on each side two small 

 scaly patches ; the supra-marginal sulcus alone is filled with an 

 uninterrupted band of scales, white or yellow according to the sex, 

 and the juxta-sutural and discoidal ones are twice or thrice interrupted ; 



