14-4 Journal New York Entomological Society. [Voi. v. 



B. concolor Kirby. — Faun. Bor. Am. 1837, IV, p. 54 {Feryphtis'). 



Habitat: Maine, the Lake Superior region and from thence west- 

 ward to the Pacific Coast. It is essentially a northern species. 



B. planatum Lee. — Ann. Lye 1848, IV, p. 456 {Ochfhedromi/s). 



Our largest species of Bembidium. In form it recalls certain species 

 of Plafynus. 



Habitat: Lake Superior, the Rocky Mts., Nevada, Oregon, Wash- 

 ington and British Columbia. 



B. simplex Lee. — List Col. X. Am. 1863, p. 14 (list name); 

 Hayw., Trans., Am. Ent. Soc. 1897, XXIV, p. 63. 



Very closely allied to the next species. 



Habitat: Labrador, Canada, the Hudson Bay Territory, the White 

 Mts. of New Hampshire, Vermont, Massachusetts, the mountains of 

 North Carolina, the Lake Superior region and Missouri. 



B. planiusculum Mann. — Bull. Mosc. 1843, XVI, p. 215. 



Habitat : Lake Superior, the Rocky Mts. and from thence westward 

 to the Pacific Coast and northward to Alaska. But two specimens have 

 been seen by me from the Lake Superior region. 



B. incertum Mots. — Bull. Mos. 1845, XVIII, p. 350 {Notaphus). 



The dorsal punctures are larger and more prominent than in most 

 of the species of the genus. 



Habitat: Lake Superior region, the Rocky iMountains, Alaska and 

 the Northwest. 



B. grandiceps Hayzv. — Trans. Am. Ent. Soc. 1897, XXIV, 

 p 70. 



The head is unusually large in this species, being scarcely narrower 

 than the thorax. 



Habitat: Massachusetts, Xew York, Pennsylvania, the District of 

 Columbia and Texas. It seems to be local. 



B. guexi Chaiid. — Rev. et Mag. Zool. 1868, ser. 2, XX, p. 242. 



Habitat: The northeastern States, extending southward to Virginia 

 and westward to Lake Superior. 



B. fugax Lee. — Ann. Lye. 1848, IV, p. 467 (^Oehthedromus). 



Habitat : Canada, Vermont, Massachusetts, New York, New Jersey, 

 Pennsylvania, Ohio, Michigan and Illinois. 



B. transversale DeJ. — Spec. 1831, V, p. no. 



A very variable species. As here constituted it includes several spe- 

 cies that were based upon characters which become evanescent when 

 a large series of specimens is studied. 



