266 ME. G. A. K. MARSHALL ON THE [MaV. 20, 



truncate at apex, sides subpai-allel fi-oni base to aljout midrlle, then 

 i-oundly narrowed to apex ; upper surface convex, set with low 

 rounded or confluent granules which are often moi-e sparse on the 

 disk, with a vaiiable central carina which is sometimes complete 

 and distinct, but usually more or less abbreviated oi- even entirely 

 aljsent ; colour piceous, the giunules bare, the interstices with 

 grey or yeilow-ish scaling whicl i is denser laterally. Elytra narrowly 

 ovate in the S , broader in the § and moi'e acuminate posterioi'ly, 

 slightly sinuate at base, sides rounded, broadest before middle ; 

 upper surface convex, with broad strife containing shallow punc- 

 tuation separated by small gi-anules ; the interstices convex, of 

 equal width, closely and irregularly set with small low and usually 

 confluent gi-anules, often giving them a transversely rugose appear- 

 ance ; colour piceous or black, with fine grey or yellowish scaling, 

 which is very thin on the disk but rather denser along the inflexed 

 margins. Legs rather long and slender, piceous or ferruginous, 

 with \^ery fine pale scaling, the extei'ior edge of the anteiior tibiae 

 straight in the $ , distinctly curved close to apex only in the c^ . 



Types c? $ in the Stockholm Museum. 



Cape Colony : Grahamstown [Oxf. Mus.]. Orange River 

 Colony : Bloemfontein (Miss Wilman — Camb. Mus.). 



Although I have no evide^ace as to the insects actually being- 

 taken in cojndd, I can have no doubt that ])07'caius Gyl. is the 

 5 of toilns Spai'rm., the characters distinguishing them being 

 evidently sexual. Including the typical specimens from Stockholm, 

 I have seen six porcatns and four totlus. 



*29. iScioBius muricatus Boh. 



S. muricatus Boh. op. cit. vii. 1, p. 193 (1843). 



" Almost half as small as Sciohius tottus, moi'e convex ; thorax 

 very short ; the intervals of the elytra remotely tuberculate pos- 

 terioi'ly : these cliaracters will at once distinguish it fi'om the 

 preceding species [tottus and j^orcatus^ 



" Head short and broad, almost plane above, vertex finely and 

 closely punctured ; forehead rugosely striolate, entirely piceous, 

 and with sparse grey scaling, separated from the i-ostrum by a 

 deep angulated impression ; eyes sub-rotmidate, slightly prominent, 

 brownish black. Rostrum a little narrower and longer than the 

 head, stout, pori'ect, almost plane above, tricarinate, obsoletely 

 punctulate, piceous black, and with denser gi'ey scaling. Anteuvce 

 inserted towards the apex of rostiaim, longer than half the body, 

 slender, piceous and spai-sely pubescent, the club narrow, acumi- 

 nate. Thorax very short, ti'ansverse, truncate at base and apex, 

 a little narrower anterioi'ly, obsoletely constricted close to apex ; 

 sides not ainpliated, almost sti-aight ; upper surface slightly 

 convex, obsoletely tuberculate throughout, piceous black, with the 

 anterior maigin paler, sparsely covered with grey scaling. Scu- 

 tellum minute, scarcely visible. Elytra truncate anteriorly, 

 scarcely broader than the base of the thorax, but obliquely 

 ampliated a short distance behind the base ; shoulders rounded. 



