Global Range: Southern Arizona south through western mainland of Mexico to Nicaragua. In the U.S., known from only 4 sites in vicinity of Baboquivari Mountains, Pima County, Arizona (apparently common there, but day roost site unknown). Specimen from near Sun City, Maricopa County, Arizona, sometimes referred to this species, is actually E. PEROTIS (Hoffmeister 1986). Winter distribution and precise limits of range are unknown.
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