€54 Transactions South African Philosophical Society, [vol. xiii. 



in front in the middle, and does not entirely coalesce with the 

 frontal one as much as it does in H. mosambicus, the plication is, 

 however, the same in both species ; the shape of the prothorax and 

 elytra is also the same, but in H. mops the juxta-sutural stria is 

 deep, the other two following are moderately deeply striate in 

 the dorsal part only, and the punctures of the third one is obliterated 

 before reaching the posterior declivity which is deeply and some- 

 what closely punctate ; the fourth and fifth rows of punctures reach 

 slightly past the median part only, and the lateral ones are partly 

 obliterated ; the two stridulating striae of the propygidium are sub- 

 parallel, and the finely punctulate basal band on the pygidium is 

 somewhat broader than in H. mosambicus ; the anterior tibiae are 

 simply tri-dentate as in the last-mentioned species, but the genital 

 armature is distinctly different in shape. 



Length 10 mm. ; width 5 mm. 



Hab. Southern Ehodesia (neighbourhood of Salisbury). 



Gen. XENODOKUS, Brem., 

 Ann. Soc. Ent. Fr., 1884, p. 296. 



Xenodorus janus, Fabric, 

 Syst. Eleuth., i., p. 9. 

 Breme, Ann. Soc. Ent. Fr., 1884, p. 297, pi. 7, figs. 8, 9. 

 Venedus paradoxus, Boh., Catal. i., p. 557. 



I separated this species, of which I saw only one example lent to 

 me for the purpose of identification, from the genus Heteronychus, 

 from which it greatly differs, and I proposed to include it in a new 

 genus. Felsche, however, after having examined Boheman's type, 

 has ascertained that it is the £ of Xenodorus janus, Fabric. (Deutsch. 

 Entom. Zeits., 1906, p. 349). Venedus falls therefore into synonymy, 

 and so does the specific name paradoxus. 



The $ differs from the $ in bearing on the vertex of the head 

 a long, recurved, sub-compressed horn dilated towards the apex, 

 where it is bifid ; the prothorax is very broadly excavated longi- 

 tudinally, the walls of the excavation are produced into two broad 

 projections directed forwards and ending in a sharp or moderately 

 sharp point. The species is recorded from Senegal, Guinea, and 

 also from the Congo. 



