Coleopterous Sub-Family Byrsopince {CiirculionidcR). 73 



with numerous conical tubercles, those on the declivity not con- 

 spicuously larger than the others, intervals 2 and 3 each with a 

 small basal carina, 5 with a prominent humeral tubercle. Legs with 

 uniform brown scaling and scattered erect setae ; the posterior 

 tarsi with joint 1 longer than 2, the latter being longer than 

 broad. 



Cape Colony. 



Type in the British Museum. 



Nearly allied to B. stdcicollis, Gyl., but readily distinguished by the 

 high straight carin^e on the thorax and the smooth lateral patches. 

 I have seen 18 examples in which the structural characters appear 

 to be unusually stable. 



11. Byesops sulcicollis, Gyl. 

 B. sulcicollis, Gyl., Schonh. Gen. Cure, ii., p. 410 (1834). 

 B. hohemani, Boh., op. cit. vi., 2, p. 398 (1842). 

 B. intermedia, Pasc, Trans. Ent. Soc. L. 1887, p. 327. 



Long. 6i-9|- ; lat. 3|-5 mm. 



Colour black, with dense grey or brown scaling (often denuded), the 

 elytra with two basal spots and a large quadrate sutural patch of 

 p'ale or dark velvet-brown. 



Head with variable punctuation and with two distinct oblique 

 frontal carinas which unite anteriorly with the ocular ridges. Rostrum 

 shallow bisulcate, with a distinct central carina, the dorsal margins 

 evidently costate and often with a shallow longitudinal impression 

 adjoining them, Prothorax dorsally about as long as broad, some- 

 times rather transverse in the ? , sides slightly ampliated about 

 middle, the ocular lobes scarcely dilated laterally ; upper surface 

 rugosely punctured, with a deep continuous central furrow which is 

 bordered by two prominent, usually undulating carinas, the anterior 

 transverse impression with a distinct fovea on each side of the 

 furrow ; sides with deep separated punctures throughout. Elytra 

 ovate, shoulders roundly prominent, especially in the 2 , sides not 

 much ampliated, the posterior declivity rounded dorsally ; upper 

 surface deeply and irregularly punctured, but sometimes with the 

 first two rows fairly regular in the basal half ; intervals 6, 4 and the 

 apical half of 2 with prominent closely set subcorneal tubercles, 

 those at the top of the declivity scarcely longer than the others ; 

 interval 2 with a small callus at base, interval 3 with a much larger 

 and oblique callus, and 5 with a prominent elongate humeral 

 tubercle ; inflexed margins with regular rows of large deep punctures. 

 Legs with denser grey scaling and short dark setae ; posterior tarsi 



