144 
Journal New York Entomological Society. 
[Vol. V. 
B. concolor Kirby. —Faun. Bor. Am. 1837, IV, p. 54 (. Peryphus ). 
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. Lyc. 1848, IV, p. 456 (Oe lithe dr o mu s). 
Our largest species of Bembidium . In form it recalls certain species 
of Platynus. 
Habitat: Lake Superior, the Rocky Mts., Nevada, Oregon, Wash¬ 
ington and British Columbia. 
B. simplex Lee .—List Col. N. 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 (Notophus'). 
The dorsal punctures are larger and more prominent than in most 
of the species of the genus. 
Habitat: Lake Superior region, the Rocky Mountains, Alaska and 
the Northwest. 
B. grandiceps Hayw. — Trans. Am. Ent. Soc. 1897, XXIV, 
P 7 °* 
The head is unusually large in this species, being scarcely narrower 
than the thorax. 
Habitat: Massachusetts, New York, Pennsylvania, the District of 
Columbia and Texas. It seems to be local. 
B. guexi Chaud. —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. Lyc. 1848, IV, p. 467 (Ochthedromus). 
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. 
