94 Coleopterological Notices, III. 



arcuate, the humeri broadly oblique to the base of the prothorax ; disk with 

 distinctly impressed series of small deep punctures, the intervals sparsely, 

 finely punctate in both sexes. Abdomen minutely, very sparsely punctate 

 throughout, rather more closely so in the female, the metasternum coarsely, 

 sparsely so externally. Legs slender, the basal joint of the hind tarsi one- 

 third longer than the remainder. Length 7.0-8.0 mm. ; width 2.9-3.2 mm. 



Massachusetts ; Michigan ; Virginia. 



This species is more northern in distribution than obscurus, and 

 is easily distinguishable by its shorter prothorax, coarser punctua- 

 tion, rather broader, more depressed form, black color and long 

 third antennal joint of the male. The series before me is quite 

 homogeneous. 



Two specimens from Florida are not included in the measure- 

 ments given above, as they appear to represent a much smaller, 

 though very closely allied species. It will require larger series to 

 definitely solve this question. 



9 H. difficilis n. sp. — Elongate, sub-oval, rather strongly convex, pice- 

 ous-black throughout, the tarsi paler ; surface highly polished, the pubescence 

 rather long, coarse, pale, moderately dense. Head coarsely punctate, the 

 punctures very sparse between the eyes, but dense along the base ; eyes 

 moderate, separated by their own width ; antennae about one-half as long as 

 the body, robust, strongly compressed, feebly attenuate, joints four to eleven 

 equal in length, very strongly obconical, nearly twice as long as wide, the 

 third joint short, ahout two-thirds as long as the fourth in the male. Prothorax 

 long, about one-half wider than long, broadly, rather strongly arcuate at apex, 

 the sides parallel or very feebly convergent and nearly straight in basal two- 

 thirds, then rounded into the apex ; basal angles right, not at all rounded ; 

 base transverse, the sinuations very broad, distinct ; disk with obsolete median 

 sub- basal impression, very coarsely, deeply punctate, the punctures round, 

 separated by nearly twice their own widths. Elytra about three and one-half 

 times as long as the prothorax, and, in the middle, slightly wider, rather 

 obtusely ogival at apex; sides parallel and just visibly arcuate; disk with 

 unusually broadly, deeply impressed series of punctures, which are coarse, 

 deep and very conspicuous toward base, but finer, though still distinct, toward 

 apex ; intervals rather strongly convex toward the suture, finely, sparsely 

 punctate. Abdomen finely, very sparsely punctate throughout. Legs slender ; 

 basal joint of the hind tarsi distinctly longer than the remainder, though 

 rather shorter than usual in this section. Length 7.3 mm. ; width 3.0 mm. 



New York. 



The unique type is a male. The species is not very closely 

 related to any other, and may be distinguished from pilosus by its 

 more slender form, more elongate prothorax and short third antennal 



