Mr. A. Murray on Coleoptera from Old Calabar. 119 



right angles : the base is truncate, slightly obtuse towards the 

 angles ; the lateral margin is piceous and semitransparent, 

 deeply and broadly reflexed, and the sides edged (most so be- 

 hind), forming a deep channel, which is transversely rugose ; the 

 rugosities extend along the base, more faintly in front, and 

 still more so across the disk, which is convex and almost free 

 from punctures ; the dorsal line is deep, merging in the curvi- 

 linear impression in front, which is also well marked. Scutel- 

 lum impunctatc, but finely rugose. Elytra elongate-ovate, 

 truncate at the base, emarginate and sinuate at the apex; rather 

 depressed, but slightly raised at the suture ; the lateral margins 

 reflexed, most deeply so behind the shoulders ; punctate-striate ; 

 the interstices sparsely but somewhat coarsely punctate, the 

 marginal space with pitted impressions. Under side piceous, 

 polished and shining, more or less rugosely punctate on the 

 mesosternal and metasternal parapleura; faint traces of punc- 

 tures on the prosternal parapleura. Thighs pale testaceous ; 

 knees, tibia?, and tarsi piceous. 



A. planaticollis, mihi. 



Depressus, latus, supra niger, subtus piceus ; thorace lato, fere 

 piano, hexagono ; elytris punctato-striatis, interstitiis impunc- 

 tatis ; pedibus pallide testaceis. 

 Long. 6 lin., lat. 2£ lin. 



Broad, depressed, black or dark piceous. Head smooth, 

 shining, and impunctate, with an elongated impression on each 

 side at the base of the antenna?, and traces of one or two small 

 punctures or impressions behind these ; labrum piceous, qua- 

 drate ; mandibles, maxilla?, mentum, palpi, and basal joints of 

 antenna? piceous ; remainder of antenna? fuscous, and rather 

 thicker in the middle than at the extremities. Thorax depressed, 

 broad, nearly hexagonal in shape, but broader than long; 

 emarginate in front; all the angles nearly equally obtuse, 

 and all rounded off, anterior most so : the lateral margin angled 

 nearly in the middle, the anterior half nearly straight, the pos- 

 terior slightly emarginate and waved : base obtuse towards the 

 angles, slightly emarginate in the centre : the sides are semi- 

 translucent and very broadly and shallowly reflexed, and nearly, 

 though not quite, as much so in front as behind; the broad 

 channel so formed is well defined and rugosely punctate ; the 

 anterior and basal marginal spaces are less deeply so ; the disk 

 slightly raised and smooth, but not very convex; the dorsal 

 channel deep, reaching to the base, but not quite to the anterior 

 margin ; the sides of the reflexed margin are distinctly edged. 

 Scutellum rugosely punctate. Elytra oblong, very fiat and 

 depressed ; sides nearly parallel ; base truncate, and shoulders 



