156 AMERICAN COLEOPTERA 



riorly, the hind angles obtuse: side margins rather coarsely serrate, especially 

 posteriorly; surface moderately strongly punctate, the punctures mutually dis- 

 tant by about their own diameters; basal fovea moderately strong, not produced 

 laterally. Elytra about two-fifths wider than the prothorax, oblong-ovate, the 

 striae scarcely impressed, the punctures of the intervals evidently finer than 

 those of the striae toward the base, but very little so apically. Prosternum 

 coarsely, quite closely punctate; the metasternuni nearly as coarsely but less 

 closely punctate at sides, sparsely, more finely punctate at middle. First ventral 

 segment finely, sparsely punctate, following segments indistinctly very sparsely 

 punctulate. .Middle coxae distant by about one third their width; metasternuni 

 suhequal to first ventral at sides. Legs moderate. '.PI. V, fig. 45). 



Male. — Front and middle tibiae rather strongly bent and mueronate within at 

 tip; fifth ventral a little longer than the fourth and distinctly transversely im- 

 pressed at apex. 



Female. — Not known 



Length 2.1 mm. 



H(tb. — British Columbia (Glacier). A single male in the Hub- 

 bard and Schwarz collection. 



C serricollis Lee. — Elongate, subparallel, rufocastanepus to piceous brown, 



pubescence recumbent. Head a little narrower than the prothorax. sparsely, 

 finely punctate; eyes moderately prominent, tempora distinct; antennae scarcely 

 longer than the thorax itself, the first two joints of club slightly transverse. Pro- 

 thorax a little wider than long, widest a little before the middle, sides irregularly 

 but not strongly serrulate, hind angles not very distinct; surface not closely 

 punctate, the punctures distant by about their own diameters; a basal not very 

 deep fovea, which is laterally prolonged. Elytra but little wider than the pro- 

 thorax; striae scarcely impressed, the punctures moderate at base, growing feeble 

 toward the tip ; interspaces finely serially punctulate. Prosternum a little, longer 

 before the coxae than the coxal length, sparsely, coarsely punctate in front, 

 nearly smooth at sides. Middle coxse separated by about two-fifths their own 

 width. Metasternuni a little longer than the first ventral at sides, of about the 

 same length on the median line, its surface sparsely, finely punctate at the mid- 

 dle, more coarsely but still sparsely at sides. Abdomen very finely, sparsely 

 punctulate. the punctures of the first segment only very slightly stronger than 

 on the following segments. (PI. V, fig. 46). 



Male. Front and middle tibiae distinctly, hind tibia/ slightly, bent at tip. with 

 the. inner apical angle mueronate; fifth ventral broadly, feebly impressed toward 

 the apex, the impressed surface a little roughened. 



Female. — Tibia- unmodified; fifth ventral with a rather large and deep trans- 

 verse fovea occupying the apical two-thirds of the segmental length ; the surface 

 of the fovea not roughened. 



Length 2.1 2.3 mm. 



Hub. — Lake Superior; Canada; New Hampshire. 



Judging from the number of specimens seen — six only — this is 

 far from being a common species, and is evidently confined to the 

 northern portions of our territory. Of the six examples seen one 

 only is a male, and while coining from the type locality (Lake 



