Goleopterological Notices, VII. 49t 



than wide, longer than the next two and distinctly thicker ; three to six sub- 

 equal, the latter, perhaps, just visibly larger, moniliform, wider than long ; 

 seventh % wider, ^^ wider than long, larger than the eighth, the latter 

 not vdder than the sixth but a little more transverse ; ninth %, tenth 1^, 

 wider than the eighth, obtrapezoidal, subsimilar, moderately transverse ; 

 eleventh short, conoidal, ogival at apex and not oblique, barely as long as 

 wide, much shorter than the two preceding and not quite as Tvide as the tenth. 

 Prothorax distinctly wider than long, the sides strongly rounded throughout, 

 widest scarcely before the middle, nearly }q wider than the head, strongly 

 convex, with two fovese near the base separated by scarcely }{ the width and 

 united by a transverse and somewhat anteriorly arcuate channel, also with a 

 small fovea near each angle in the same line. Elytra evenly oval, not quite 

 3^ longer than wide, 2% times as long as the prothorax and % wider ; sides 

 rounded rather strongly and very evenly ; apex narrowly parabolic ; humeri 

 not evident ; disk rather convex, widest near the middle, the suture not modi- 

 fied. Legs short but rather slender, the femora feebly clavate. Length 

 0.65 mm.; Tvidth 0.28 mm. 



Pennsylvania (Westmoreland Co.). 



The general habitus of this species is very different from that 

 of the two preceding and, in connection with the single coarse, 

 deep and subpubescent fovea at the base of each elytron, would 

 almost seem to demand for it a separate subgenus. Sexual char- 

 acters have not been observed. 



DELIUS n. gen. 



This genus is closely allied to Opresus, but has the scutellum 

 exposed between the elytra, the legs longer, the hind tarsi moder- 

 ately elongate with the first four joints equal, short and oblique 

 at apex, the fifth normal and longer than the two preceding, and 

 the prothorax bristling on the flanks with stiff but short setse. 

 The hind coxae extend virtually to the sides of the body and are 

 extremely approximate, though apparently not quite contiguous. 

 The single species may be described as follows : — 



1. D. robustlllllS n. sp. — Eather stout, slightly ventricose, very strongly 

 convex throughout, polished, impunctate, pale rufo-testaceous, the legs and 

 antennae paler, more flavate and translucent; pubescence short, pale, suberect 

 but strongly recurA^ed, sparse, inconspicuous anteriorly but becoming extremely 

 dense and intermingled with stiff inclined spicules on the sides of the pro- 

 thorax, moderately coarse, even and distinct on the elytra. Head rather small, 

 slightly wider than long, the eyes well developed, median, convex and promi- 

 nent, the tempora strongly convergent and very feebly arcuate behind them 

 to the neck and nearly as long as the eyes; neck almost % as wide as the 

 head ; antennal prominences small and feeble, separated by less than 3^^ the 



