106 Coleopterological Notices, III. 



and sparse. Head rather strongly, sparsely punctate, the eyes large, separated 

 by two-fifths their width ; antenna? stout, two-fifths as long as the body, feebly 

 attenuate toward apex, joints four to eleven very slightly increasing in length, 

 the sixth joint on the compressed side fully one-half longer than wide, obconi- 

 cal, the tenth twice as long as wide, third and fourth equal in length. Pro- 

 thorax three-fourths wider than long, the apex broadly arcuate and continuous 

 with the sides, the latter broadly, feebly arcuate and convergent anteriorly, 

 more strongly arcuate toward the basal angles, which are slightly obtuse but 

 scarcely noticeably blunt ; base transverse, the median lobe small and short, 

 rounded ; disk quite distinctly wider at basal third than at base, scarcely 

 at all impressed, broadly explanate laterally toward the basal angles and 

 narrowly, feebly reflexed along the sides in their vicinity, coarsely, strongly 

 punctate throughout, the punctures circular and generally separated by 

 nearly their own diameters. Elytra equal in width to the prothorax and 

 about three and one-half times as long, gradually, rather acutely ogival at 

 apex ; sides parallel and nearly straight in basal two-thirds ; disk with feebly 

 impressed series of rather small but distinct punctures, the intervals finely, 

 rather sparsely, confusedly punctured. Abdomen finely but rather strongly, 

 sparsely punctured, almost totally impunctate toward apex ; metasternum 

 rather coarsely, sparsely punctate externally, rapidly very finely, densely so 

 toward the middle ; prosternum densely punctured. Legs rather long, the 

 femora robust ; basal joint of the hind tarsi two-fifths longer than the remain- 

 der. Length 6.2-7.4 mm. ; width 2.4-3.1 mm. 



Massachusetts; New York. 



The general form throughout recalls that of fusicornis, and, as 

 in that species, the antenna are notably robust, at least in the 

 female, and attenuated, but here the resemblance altogether ceases. 

 In pronotal punctuation the two species stand almost at the extremes 

 of the genus in regard to the magnitude of the punctures, and the 

 basal joint of the hind tarsi is conspicuously longer in discretus. 



The description is taken from the female. The male is smaller, 

 with entirely polished upper surface, the eyes separated by about 

 one-fourth of their width, and the antennse more slender and much 

 longer, being a little more than one-half as long as the body. The 

 pubescence, also, seems to be a little longer, and the elytral punc- 

 tuation is decidedly sparser ; the pronotum is not so decidedly ex- 

 planate toward the basal angles. 



In both sexes the fourth joint of the maxillary palpi is rather 

 strongly dilated, triangular, with the apex a little longer than the 

 outer side. The fifth elytral stria is more strongly impressed 

 toward base. 



25 H. convexus n. sp. — Elliptical, strongly convex, black above, the 

 under surface piceous-black ; legs and antennae throughout dark rufo-ferrugi- 



y 



