Myotis thysanodes Miller, 1897 . N. Am. Fauna, 13:80.

TYPE LOCALITY: USA, California, Kern Co., Tehachapi Mountains, Old Fort Tejon .

DISTRIBUTION: Chiapas (Mexico) to SW South Dakota (USA) and SC British Columbia (Canada).

SYNONYMS: aztecus, pahasapensis, vespertinus.

COMMENTS: Subgenus Myotis . Revised by Miller and Allen (1928:122-129). See O'Farrell and Studier (1980, Mammalian Species, 137).