BEMBIDIIDiE. LYMNiEUM. O 



the preceding cylindric; the armed antepenultimate joint of the 

 tarsi (as in Aepus) is also an essential distinction, and the body is 

 rather dilated. 



Sp. 1. nigropiceum. Plate X.f.l. — Nigro-piceum, antennis pedibusque paulo 

 dilutioribus, elytris profundiuscule striatis. (Long. corp. 2 lin.) 



Ca. nigropiceus. Marsham. — Ly. nigropiceum. Steph. Catal. p. 36. No. 340. 



Pitchy-black, with a tendency to ferruginous : head nearly castaneous, with two 

 oblong longitudinal slightly rugose impressions in front, the posterior part im- 

 punctate: thorax deep pitchy ferruginous, depressed, with a strong longi- 

 tudinal dorsal channel, terminating anteriorly in a bifid oblique line, which 

 reaches to the anterior angle, leaving a triangular space, which is impunctate 

 and of a paler hue than the rest of the surface, the base excepted, which is 

 similar and a little punctate ; the disc has a tinge of blue : elytra depressed, 

 deep pitchy-black, striated, the striae deep, but simple, the interstices convex, 

 with two very strongly impressed dots on the fourth from the suture : legs 

 ferruginous: antenna?, palpi, and labrum fulvous-red. 



The only specimen I have seen of this remarkable insect I ob- 

 tained from the Marshamian cabinet; its locality is unknown to me. 



Sp. 2. depressum. Piceo-nigrum, antennarum basi ore pedibusque pallidefulvis, 



elytris tenue striatis. (Long. corp. 1^ lin.) 

 Ta. ? depressus. Curtis, MSS. ? — Ly. depressum. Steph. Catal. p. 36. No. 341. 



Pitchy-black ; head with an arcuated impression on each side round the eyes : 

 thorax greatly depressed, with a deep longitudinal Hue ; the disc sparingly, 

 and the base thickly, punctured : elytra also very flat, slightly clothed with 

 short hairs, obsoletely striated, the striae impunctate, the interstices depressed 

 and sparingly punctulate: legs pale rufo-fulvous : antennas with the basal 

 joint fulvous; the two following tinged with the same, the rest dusky. 



This insect appears to associate with the foregoing ; but, having a single in- 

 jured specimen only, I cannot decide with certainty on the point. 



" Taken on Dudden Sands, near Broughton, Lancashire; not 

 uncommon, but difficult to secure, on account of the wind." — 

 J. C. Dale, Esq. 



Genus LXV. — Cillenum, Leach. 



Palpi short; external maxillary with the second and third joints subclavate, 

 the latter rather the longest and stoutest, and pilose, the terminal short and 

 slender; labial with the terminal joint very minute and short, the preceding 

 robust, subclavate, pilose : labrum transverse, concave anteriorly : mandibles 

 elongate, slender, bent, and acute : mentum deeply notched, with an obtuse 

 central lobe. Antenna? pubescent, the third joint considerably longer than 

 the fourth, the fifth to the tenth moniliform : head broad : thorax cordate- 

 truncate, hinder angles acuminated : elytra linear, much depressed : anterior 

 tarsi dilated, especially in the males. 



b2 



