the Dasytinae of South Africa. 393 



13. Dasytes opacus. 



? Dasytes opacus Tliunb., Nova Acta Soc. Sci. Upsal., 

 viii, p. 174 (1821). 



" D. opacus : cinereo-olivaceus, subtus niger. Pediculi magni- 

 tudine; supra obscurus, olivaceus sen cinereo-virescens ; subtus 

 ater, nitidus. Elytra flexilia." [Thunberg.] 



(^. Elongate, narrow, depressed, subopaque, thickly clothed with 

 fine greyish pubescence intermixed with rather long, semierect 

 hairs; brassy-black, the head and prothorax dull, alutaceous, 

 densely, finely punctured, the elytra finely rugulosely punctate. 

 Head bisulcate anteriorly and also with a short groove on the vertex, 

 the supra-orbital ridges rather prominent; antennae moderately 

 long, rather stout, joints 5-10 very gradually increasing in length, 

 all longer than broad. Prothorax transverse, narrowed anteriorly. 

 Elytra long, much wider than the prothorax, gradually narrowed 

 from a little below the base. 



Length 2i-3 mm. 



Hah. S. Africa, Table Mountain (W. Bevins), Cape 

 Town {F. Purcell, in Mus. Cape Totvn), Cape of Good 

 Hope (type of Thunberg). 



Described from three precisely similar males which are 

 provisionally referred to D. opacus Thunb. The females 

 may be mixed with those of the variable D. thunbergi. 

 This is one of three extremely closely allied S. African 

 Dasytes that seem to require distinctive names. The 

 present insect is distinguishable from D. thunbergi, ,^, by 

 the longer and less thickened antennae, and the densely 

 punctulate, dull upper surfaces; and from D. turneri by 

 the opaque head and prothorax, and the finer and denser 

 sculpure. 



14. Dasytes luteopubens. 



? Dasytes luteopubens Pic, L'Echange, xxvii, p. 151 (1911). 



5. Elongate, narrow, black, opaque, thickly clothed with fine, 

 adpressed, brownish-cinereous pubescence, without longer hairs 

 intermixed; the entire upper surface alutaceous and densely, 

 extremely finely punctured. Head much narrower than the 

 prothorax, subtriangular ; antennae rather slender, very short, 

 thickened towards the apex, subserrate, joints 6-10 transverse. 

 Prothorax broader than long, rounded at the sides, narrowed 

 anteriorly and less strongly so towards the base. Elytra very long, 

 much wider than the prothorax, a little widened posteriorly and 



