150 Memoirs on the Coleoptera 



The following species has the sides of the prothorax merely- 

 oblique behind and not distinctly sinuate basally; being the only 

 one of the ohligua series at hand, it is described before the others: 



Nebria nimbosa n. sp. — Rather narrow and very moderately convex, 

 shining, black above and beneath, without trace of metallic lustre; legs 

 long and very slender, dark rufous, the femora blackish, gradually 

 rufescent basally; head as long as wide, fully three-fourths as wide as 

 the prothorax, the eyes moderate, rather prominent; front smooth, 

 with two red spots on a line through the middle of the eyes; anterior 

 margin tumid at the middle; mandibles and palpi piceo-rufous, the 

 last joint of the latter two-thirds longer than the third; antennae slender, 

 nearly three-fifths as long as the body, black, gradually brown distally; 

 prothorax not quite one-half wider than long, widest at the middle, the 

 sides arcuate, oblique and broadly, just visibly sinuate basally, broadly 

 and strongly reflexed throughout; basal angles obtuse though sharply 

 defined, the apical prominent but rounded; base transverse, distinctly 

 narrower than the broadly, deeply sinuate apex; transverse impressions 

 both rather sharp and deep, the base depressed, feebly and sparsely 

 punctulate; foveae very small, basal and linear; elytra four-fifths longer 

 than wide, two-thirds wider than the prothorax, gradually slightly 

 wider behind, with nearly straight sides, which are rapidly rounded at 

 base; apex rather rapidly rounded, each apex oblique and straight, 

 rounded suturally; striae rather coarse, feebly impressed, with distinct 

 and well separated punctures, the third with about three small feeble 

 setigerous punctures; intervals not quite flat; scutellar stria long. 

 Length 9.4 mm.; width 3.6 mm. New Hampshire (Lake of the Clouds, 

 Mt. Washington). A single female. 



Allied to longula Lee, occurring in Colorado; the sides of the 

 elytra are not parallel as they are in suturalis, described by LeConte 

 from Lake Superior, but said to occur also in New Hampshire; 

 the size is smaller and the color more uniformly black. 



The following species are all devoid of any metallic lustre; the 

 first three are allied to the Alaskan sahlbergi: 



Nebria reducta n. sp. — Body of unusually small size, shining, black, 

 the elytra and under surface more or less feebly picescent, very moder- 

 ately convex; legs slender, obscure rufous, the femora blackish; head 

 triangular, as long as wide, two-thirds as wide as the prothorax, the 

 eyes moderate, rather prominent; surface without red spots, nearly 

 smooth, feebly tumid at apex, the epistoma canaliculate in apical half; 

 palpi long, testaceous, the last joint blackish and two-thirds longer than 

 the third; antennae piceo-rufous throughout, fully half as long as the 

 body; prothorax short, very nearly twice as wide as long; sides strongly 

 rounded, oblique in basal half, becoming parallel basally, the angles 

 right, very sharp; margins deplanate, uniserially punctate, the edge 

 sharply reflexed and pallescent; transverse impressions deep, punctate; 



