1900.] Catalogue of the Colcoptcra of South Africa. ;j43 



Pychxoschema mashuna, n. spec. 



Easily distinguished by its short, robust facies. Black, shining; 

 ■clypeus a little broader than in the other three South African species, 

 cephalic horn robust, recurved from the base, gena3 very narrow, 

 quite straight in front, rounded at tip and projecting much beyond 

 the eye; head deeply and irregularly punctured, deeply impressed in 

 the centre of the base ; prothorax short, much arapliated laterally at 

 middle, broader than long by one-half, convex and having nearly the 

 whole of the anterior part scooped out into a sub- vertical, deep, semi- 

 circular excavation the lower part of which is punctate, posterior 

 part of the disk a little convex and punctulate, sides also punctulate, 

 the punctures remote; scutellum with a few punctures in the centre; 

 elytra short, somewhat convex, very faintly punctate, and with the 

 three dorsal double series of punctures not very distinct or partly 

 obhterated ; pygidium glabrous, slightly shagreened but less so in 

 the median part which is nearly smooth ; abdominal segments a 

 little more contracted than in the other species, under side and legs 

 •densely villose. 



Length 13-15 mm. ; width 7-9 mm. 



Hah. Southern Ehodesia (Salisbury). 



Although the facies of this species is very different from that of 

 P. diversa, the genital armature of both is strikingly alike. 



CALLISTEMONUS, n. gen. pia"!* X^.,-?.?-^^ 



Mentum ampliate and rounded laterally, gradually attenuate, and 

 with the ligular part very distinct, ampliate laterally, rounded on 

 each side, emarginate at middle, and standing at a certain distance 

 from the rounded apical upper margin of the mentum which is 

 strongly in relief ; insertion of the labial palpi quite lateral, the latter 

 short, joints robust, apical one swollen, moderately sharp at tip, 

 upper lobe of maxillae straight, a little hollowed inwardly, slightly 

 ■dentate at tip, and with two short, horizontal teeth opposite one 

 another, maxillary palpi short, moderately robust, apical joint 

 fusiform inwardly, straight outwardly ; mandibles concave, very 

 rounded, and projecting much beyond the short, triangular clypeus ; 

 prothorax moderately convex, slightly impressed in the male, and 

 with a short tubercle in the anterior margin ; scutellum bluntly 

 triangular ; elytra sub-parallel, convex, deeply punctured ; stridu- 

 lating organs in the shape of two diagonal finely striate bands ; 

 pygidium regularly convex in the male ; anterior tibiae tri-dentate ; 

 penultimate joint of anterior tarsi produced beneath into a sharp 



