Subspecies and Distribution. M.t.thysanodesG.S.Miller,1897—SWCanada(SBritishColumbia),WUSA(EWashington,EOregon,Idaho,WMon-tana,California,Nevada,Utah,SWyo-ming,Colorado,Arizona,NewMexico,andonerecordinNTexas),andN&CMexico. M. t. aztecus G. S. Miller & G. M. Allen, 1928 — S Mexico. M.t.pahasapensisJ.K.Jones&Genoways,1967—CUSA(EWyoming,SWSouthDa-kota,andNWNebraska). M. t. vespertinus Manning & J. K. Jones, 1988 — W USA (SW Washington, W Oregon, and NW California). in Vespertilionidae

Subspecies and Distribution. M.t.thysanodesG.S.Miller,1897—SWCanada(SBritishColumbia),WUSA(EWashington,EOregon,Idaho,WMon-tana,California,Nevada,Utah,SWyo-ming,Colorado,Arizona,NewMexico,andonerecordinNTexas),andN&CMexico. M. t. aztecus G. S. Miller & G. M. Allen, 1928 — S Mexico. M.t.pahasapensisJ.K.Jones&Genoways,1967—CUSA(EWyoming,SWSouthDa-kota,andNWNebraska). M. t. vespertinus Manning & J. K. Jones, 1988 — W USA (SW Washington, W Oregon, and NW California).Published as part of Don E. Wilson & Russell A. Mittermeier, 2019, Vespertilionidae, pp. 716-981 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 929, DOI: 10.5281/zenodo.639775