58 Mr. A. J. Jukes-Browne on a 



Kesembles S. valga, Wied., but the thorax is less trans- 

 verse, with the sides subparallel, the median furrow entire, 

 and the surface rather scantily and not strongly punctate. 

 The striae of the elytra are rather coarsely punctured, witli 

 the interstices convex. The anterior tibiae in the male are 

 thickened and subdentate in the middle ; in valga the tooth 

 is more pronounced and much nearer the femur ; the distal 

 portion is arcuate and clothed with a short golden pubescence 

 at the apex. From 8. confusa, Fairm., it is at once distin- 

 guished by the length of the antennae, which reach almost to 

 the base of the thorax, having all the joints longer than 

 broad. 



Camarimena rugosistriata. 



Elongata, subparallela, fusco-acnea, nitida, eorpore omnino sat parce 

 supra iuconspicue sericeo-pubescenti, capite prothoraceque dense 

 sat fortiter punctatis, elytrorum striis dense rugoso-punotatis, 

 intervallis parce et subtiliter punctulatis, sulculis transversis 

 lateribus irregulariter rugatis ; subtus pedibusque fusco-ameis, 

 dense punctatis, femoribus unticis clavatis, ceteris vix iucrassatis. 



Long. 18 mm. 



Hob. "Ind. or." (Bates Coll.) j Kunain, Jaunsaur, N.W. 

 Himalaya (Stebbing). 



Entirely bronze-coloured and covered with a scanty incon- 

 spicuous silky pubescence. The sculpture of the elytra is 

 very distinct, the punctures of the striae being very closely 

 placed and transversely elongate, giving off irregularly a 

 short furrow which encroaches on the interstice, now on one 

 side now on the other ; the intervals are nitid and sparsely 

 punctulate. The legs are densely punctured, with the 

 femora but feebly clavate, those of the anterior legs being- 

 most strongly so. 



This species had been separated by Bates from Camari- 

 mena under the name of Pigeus, but without characterization 

 of the genus. For the present, however, until the group 

 comes to be revised, 1 consider it best to leave it in Camari- 

 mena. 



V. — On a new Species of dementia. 

 By A. J. Jukes-Bkowne, F.K.8., F.G.S. 



[Plate L] 



The shell which forms the subject of this communication is 

 one of two specimens which were purchased by Mr. J. C. 

 Melvill at the recent sale of Mr. Billow's collection. They 



