168 Annals of the South African Museum. 



to their greater width ; they are opaque, nearly black, but metallic 

 along the base, and dark blue for a short distance along the outer 

 margin, the epipleural fold is often flavescent ; the first elongated 

 flavescent dorsal patch is about median, and nearly equi-distant 

 from the base and the median part, the second is slanting and supra- 

 marginal, and set closer to the apex than to the median part; 

 abdomen black ; pectus with a faint greenish sheen. 

 Length 21-23 mm. ; width 7-9 mm. 



Although agreeing with Dr. W. Horn that T. (Stypli.} sub-opacum, 

 Fairm., is at most a sub-species of T. asperatum, Waterh., if not the 

 same species, I do not consider T. dodsi to be a sub-species of the 

 latter ; it is smaller than any of the two species mentioned, the elytra 

 of the male are more acuminate towards the apex, and although not 

 convex they are certainly not depressed, the female is also more 

 convex, and more regularly attenuate behind, and the sculpture of 

 both is very different from that of T. asperatum and T. sub-opacum, 

 the granules being much smaller and narrower, \vith their basal part 

 separated from each other by a wide interval, whereas in the two 

 above-named species they almost coalesce with each other at their 

 base. I have seen two male and three female examples of this 

 species. 



Hab. Southern Rhodesia (Sebakw T e). D. Dods. 



FAMILY CARABID^E. 



TEIBE HEXAGONINI. 



GEN. HEXAGONIA, Kirb. 

 HEXAGONIA VENUSTA, n. sp. 



Black, with the elytra for two-thirds of the length, the femora 

 with the exception of the apical part, the metasternum and the two 

 or three basal joints of the abdomen testaceous-red ; head very 

 deeply and closely punctate all over and without any smooth area ; 

 prothorax of the normal shape, but a little less broadly cordiform in 

 the anterior part than in the other South African species, deeply 

 grooved longitudinally, and deeply and equally punctate except along 

 the outer margins, which are slightly plicate; elytra depressed, deeply 

 punctato-striate, with the intervals not quite plane and tectiform on 



