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



examples of C. elongatuJus,Y.^ in general appearance; but 

 the rostral structure of that species is very different and the 

 elytra are more deeply striate. 



5. Cossonus incivili's, Fahr. 



Cossonus incivUis, FShr. (Efv. K. Vet.-Akad. Forh. 1871, p. 286. 



Long. 4-4f , lat. l^lf mm. 



Head subconical, impunctate on vertex, forehead punctu- 

 late and with a variable central fovea ; eyes rather large, 

 slightly prominent. Rostrum about as long as head, narrowing 

 gradually from base to middle, tlience broadly and quadran- 

 gularly dilated to apex ; upper surface even^ closely and Hiudy 

 punctured ; antemiffi short and stout, ferruginous, inserted in 

 front of middle. Prothorax rather longer than broad, apex 

 truncate and much narrower than base, which is strongly 

 bisinuate, sides slightly rounded, broadest about middle, 

 faintly constricted at apex ; upper surface slightly convex, 

 with a strong central impression, narrow from near apex to 

 middle, thence broadly and triangularly dilated to base, the 

 anterior part being usually shallow ; the impression is strongly 

 punctured and contains a very narrow undulating carina, the 

 disk smooth and with very fine sparse punctuation, beyond 

 which the sides are deeply and coarsely punctured ; colour 

 black, shining. Elytra separately rounded at base, very 

 little broader than prothorax at shoulders, which are sloping, 

 sides parallel to beyond middle ; upper surface moderately 

 convex, with nine complete strongly punctured stride, which 

 are very deep near the suture, but become shallower laterally, 

 intervals almost as broad as stri{«, convex and impunctate; 

 colour black, shining. L(gs short, piceous, bare, and obso- 

 letely punctured, tarsi paler. 



ISatal: Verulam, Umgeni; Mashonaland : Salisbury. 

 Type in the Stockholm Museum. 



The typical specimens taken by Wahlberg in " Caffraria " 

 are apparently immature, all my own examples being of a 

 shining black colour. The species in general form and sculp- 

 ture is allied to suturaJis, Boh., and transvaalensis, Mshl., 

 but it is distinctly more convex, the rostrum is much more 

 dilated and more evidently punctured above, and the thoracic 

 impression is of a different siiape. 



In Natal 1 found this insect in decaying Euphorbias, and 

 at Salisbury under the rotting bark of what is locally known 

 as the " cabbage-tree." 



