This species has not, so far as is known, been taken in Washington in its daytime retreat. Daniel Bonell saved two specimens from under slabs of loose bark on old, dead snags near Tillamook, Oregon. [Davis] (1939: 214) reported them as hiding in the daytime in a cave in Craters of the Moon National Monument, Idaho. [Whitlow] and [Hall] (1933: 241) report specimens found in an old cabin near Pocatello, Idaho, two of them containing one embryo each.
Myotis evotis evotis (H. [Allen])
Vespertilio evotis [Allen], Smithsonian Misc. Coll., 7 (no. 165):48, June, 1864.
Myotis evotis [Miller], N. Amer. Fauna, 13:77, October 16, 1897.
Myotis evotis evotis [Miller] and [Allen], U. S. Nat. Mus. Bull., 144:114, April 14, 1928.
Type.—Description based on a series of specimens, one of which came from Monterey, California. This locality was designated the type locality by [Miller] (1897: 78).
Racial character.—Color pale.
Measurements.—Two males and 2 specimens of unknown sex from the Blue Mountains, Columbia County, average: total length 87; length of tail 40; hind foot 7.5; ear 20; height of tragus 11; weight 5.4 grams.
Distribution.—The Blue Mountains area, of southeastern Washington; recorded from South Touchet ([Miller] and [Allen], 1928: 116) and Godman Springs (W. S. M.).
Remarks.—[Miller] and [Allen] (1928: 116) record the dark race of Myotis evotis from the Blue Mountains. Specimens examined by me are much paler than pacificus and most of them are indistinguishable from specimens of evotis from California.