274 MEMOIRS ON THE COLEOPTERA 



Elytral apices feebly oblique, acutely bidenticulate, the outer tooth not 

 much prolonged; form moderately stout, convex, black, the elytra, 

 abdomen and legs red-brown, the tarsi infuscate apically, the four 

 paler elytral fasciae nearly always distinct and well developed though 

 interrupted medially; head very finely, closely punctulate, with 

 coarse punctures intermingled basally; antennae black, moderately 

 slender, only very feebly serrulate and not incrassate distally; 

 prothorax campanulate, convex, with distinct and evenly distributed 

 punctures, mingled with some coarse punctures on the flanks pos- 

 teriorly, the vestiture coarse, golden, decumbent and close but not 

 dense, except in the apical and basal constrictions; elytra rapidly 

 cuneiform (c? 1 ), or feebly so and less rectilinear at the sides (9), 

 finely, not densely but strongly punctulate, the hairs stiff, short, 

 fuscous or pale according to the ground tint; male with the fifth 

 ventral canalicularly and distinctly impressed distally, elongate, 

 rounded at tip, the abdomen gradually deflexed apically. Length 

 (cf 9 ) 10.0-12.0 mm.; width 3.0-4.4 mm. Massachusetts, Penn- 

 sylvania, Kansas and Wisconsin (Bayfield). Very abundant. 



velutinus Oliv. 



Elytral apices narrower and extremely oblique, the outer angle much 

 prolonged and very acute; elytral maculation always less developed . 2 



2 Prothorax evenly campanulate, nearly as in velutinus but narrower; 

 body narrower and more elongate, similar in coloration, except 

 that the tarsi are almost wholly black; pubescence nearly similar; 

 head nearly similar, the deep black antennae longer, being four-fifths 

 as long as the body (cf), much more strongly serrate distally and with 

 the sensitive areas more oval and less linear; prothorax finely 

 punctate, with coarser punctures intermingled throughout, giving a 

 more fasciculate appearance to the pubescence, very coarse through- 

 out on the flanks; elytra narrower, strongly cuneiform, with the 

 paler fasciae almost always feeble, the second invaribly wanting, 

 sometimes without trace of maculation, except the small subapical 

 spot, which is the most constant of all; punctuation nearly similar, 

 the short stiff pubescence always paler and fulvous; male with the 

 fifth ventral never having more than a trace of apical impression. 

 Length (cf 9 ) 9.8-11.8 mm.; width 2.9-3.9 mm - Massachusetts, 

 New Jersey and Pennsylvania. Abundant acuticauda n. sp. 



Prothorax inflated anteriorly, being there about as wide as it is just before 

 the basal angles and rapidly narrowing to the apical constriction; 

 coloration and vestiture as in the preceding; head similar but larger, 

 the eyes more widely separated; antennae similar but with the sen- 

 sitive areas less defined and not paler in color or silvery; prothorax 

 larger and more elongate, sculptured and clothed nearly as in 

 acuticauda; elytra similar and strongly cuneiform but much less 

 distinctly exceeding the prothorax in width, uniformly darker red- 

 brown, without trace of maculation at any part in the type, the 

 sculpture and vestiture similar; fifth male ventral nearly as in 

 acuticauda. Length (cf) n.8 mm.; width 3.6 mm. A single ex- 

 ample, without indication of locality, from the Levette collection. 



thoracicus n. sp. 



