Dhc. i89) ] Lkm; iV- iJi.i 1 KNMiii.i.iK. CoLKopi. N. !•:. Ami K. 



IT'.t 



stripe on which are placed the piiiutiired stri;v ; femora dark : 

 tibia; ferruginous. Length, .20 inch = 5 mm. 



Habitat, White Mts , N. IT., (also Vancouver Island K. Al.isk i . 



Opisthius Kirhy. 

 Head deflexed ; head and thorax ntuch narrower than the 

 elytra ; thorax somewhat broailer than long, elvtra much llattened, 

 broadly oval, foveolate. not striate. 



Opisthius Richardsoni Kirby. I'laie I\', Fig. 2 —Dark 

 bras^v, subopaque ; elytra with three rows of large fovea;, and a 

 row of smaller fove;\;, along the outer margins ; underside of body 

 black ; legs brassy. Length, .40 inch == 10 mm. 



Habitat, Hudson's Bay region and westward. 



Nebria I.atrcille. 

 Anterior tarsus of male moderately or feebly dilated ; an- 

 tenn;v; slender, joints all cviindrical, etpialing in length two-thirds 

 or more the length of the body ; scutellar stria of elytra always 

 distinct. 



Synopsis of spt'cics. 

 Hunieral angle distinct. 



Sides of elytra subparailel. 



Sides of thora.K not sinuate near base. 



l?iack ; .third elytra! stiia witli at iea.^t four punctures, suturalis. 

 .Sides of tiiora.\ sinuate at base ; liinil angles rectangular. 

 Hind angles distinctly rect.ingular ; dorsal punctures 



distinct Sahlbergl. 



Hind angles scarcely rectangular; dorsal punctures 



faint hudsonica. 



Sides of elytra strongly rounded. 



Black, legs pale yellow ; sides of thorax obliiiue ; hind 

 angles not rectangular ; elvtral stiia- very 

 distinct pallipcs. 



N. suturalis Li->:. — Black, sometimes shining, depressed ; 

 sides of thorax oblique ; elytra with subparailel, feebly rounded 

 sides ; surface moderately deeply striate, strix distinctly but ir- 

 regularly punctured, intervals llat ; third stria; with four distinct 

 large punctures. Length, .40— .46 inch = 10 — 11 5 mm. 



Habitat, Lake Superior region to New Hampshire. 



N. Sahlbergi /'V.sv//.— Black, legs piceous or castaneous, with 

 the tibia; sometimes paler ; head smooth, frontal impression shal- 

 low ; thorax one-half broader than long, sides strongly rounded in 



