Coleopterological Notices, VII. 615 



spaces; general form as in hythinoides, the antennae and palpi also nearly as in 

 that species. Proihorax scarcely more than }{ wider than long, widest near 

 anterior third, the sides moderately convergent and nearly straight thence to 

 the base; surface convex, with large sparse circular and almost completely 

 effaced areola and minute, scattered granuliform punctules, the transverse 

 posteriorly arcuate subbasal furrow distinct. Elytra very nearly as long as wide, 

 the sides feebly divergent, evenly and strongly arcuate from base to apex, the 

 humeri distinctly swollen; sutural stria strong; surface with minute and sub- 

 asperate punctures. Abdomen distinctly narrower and much shorter than the 

 elytra, the dorsal segments short, subequal in length but diminishing rapidly 

 in width. Legs slender. Length 1.1 mm. ; width 0.53 mm. 



North Carolina (Asheville). 



The second palpal joint is studded with large tubercles, and the 

 last joint is densely and very regularly clothed with fine, perfectly 

 erect hairs throughout. The single specimen before me is a male, 

 the last ventral segment being moderate in length, not impressed 

 but parabolically rounded at tip. 



Pselaptrichus of Brendel, is extremely closely allied to Bythinus 

 and should perhaps more properly be regarded as a subgenus, 

 the elongation of the basal segment of the abdomen being but 

 slight. 



TYCHUS Leach. 



Of the two species described below, the first is allied to minor 

 and the second rather remotely to puberulus. 



T. pocaboutas n. sp. — Rather slender, strongly convex, pale rufo-tes- 

 taeeous throughout, the elytra slightly clearer red and the legs and apical part 

 of the antennse more flavate; pubescence rather abundant, long, coarse, pale 

 and recurved; integuments highjy polished and impunctate throughout. Head 

 slightly narrower than the prothorax and rather longer than wide, the double 

 apical tubercle about % the maximum width ; eyes well developed, convex, 

 subbasal and very prominent; surface strongly, evenly convex in little more 

 than basal half, then declivous to the transverse depression which is situated 

 at about apical third ; longitudinal sulcus of the frontal tubercle rather fine 

 and deep; small nude punctiform fovese remotely separated at the middle of 

 the length, each immediately behind a large feeble tubercle having a minute 

 acute apex; antennse % as long as the body, nearly as in minor, the ninth and 

 tenth joints less transverse and only slightly wider than long. Prothorax very 

 nearly as long as wide, widest and subangularly rounded before the middle, 

 the sides nearly straight and feebly convergent posteriorly ; apex narrow, % of 

 the maximum width and scarcely more than % ^s wide as the base; surface 

 convex and even, with a series of small punctures along the basal margin. 

 Elytra slightly shorter than wide, fully twice as wide as the prothorax, convex, 

 the sides moderately divergent, more arcuate behind; humeral swelling narrow 



