402 Mr. G. A. K. Marshall on the 



sides gently rounded, broadest about middle, rapidly narrowing 

 towards apex, where there is a slight constriction ; upper 

 surface almost plane, deeply and closely punctured, with a 

 slightly raised smooth central line and a faint longitulinal 

 impression on each side of it ; colour entirely black or ferru- 

 ginous, with the sides and under surface sometimes blackish. 

 Elytra subtruncate at base, a little broader than tiie pro- 

 thorax at shoulders, which are subrectangular, sides parallel 

 to beyond middle ; upper surface almost plane, with deep and 

 strongly punctured striae, tlie intervals narrow and impunc- 

 tate ; colour entirely black or ferruginous, the suture and 

 lateral margins being more or less infuscate. Leys short, 

 rather slender, with faint scattered punctuation, black or 

 ferruginous, witli the knees rather darker. 



Cape of Good Hope [teste Boheraan) ; S.E. Mashona- 

 LAND : Ohirinda Forest. 



I am not aware of the existence of Fabricius's type of this 

 species; but the specimens upon which Boheman founded 

 his description are in the Stockholm Museum. 



Boheman also records the insect from India and Mauritius. 



With the exception of C. abscissus, Boh., which differs 

 widely in other respects, this is the only South-African 

 species with a furrow on the upper surface of the rostrum. 



11. Cossonus glabricoUts, Boh. 

 Cossonus glabricollis, Boh. op. cit. iv. p. 1034 (1838). 



Long. 4, lat. 1^ mm. 



Hecid conical, shining, impunctate, with a minute fovea on 

 forehead and slightly constricted behind the eyes, which are 

 subdepressed. Rostrum longer than head, curved, subcylin- 

 drical at base, slightly and quadrangularly dilated apically ; 

 smooth, shining, and almost impunctate; antennye compara- 

 tively long, terrUM'inous, inserted in front of middle. Pro- 

 thorax broadest at base, gradually narrowed till close to apex, 

 where there is a slight constriction, apex truncate, base bi- 

 sinuate, posterior angles with a minute sharp projection ; 

 upper surface plane, smooth, shining black, impunctate, 

 except for two irregular central rows of tine punctures (some- 

 times partly obsolete). Elytra separately rounded at base, a 

 trifle broader than prothorax at shoulders, which are 

 roundedly prominent, sides parallel to beyond middle; upper 

 surface depressed, with nine complete tine shallow striae con- 

 taining regular rows of small distant punctures, which are 

 faint near the suture and become gradually stronger laterally, 



