This species can be found in extreme southern New Mexico (Eddy County) and central and western Texas (north to Collin County), USA, south through eastern and southern Mexico through the Yucatán peninsula, Belize, northern Guatemala to northeastern Nicaragua. Introduced and well established at numerous sites along the lower Colorado River from the Mexican border north to Yuma, Arizona, and east 265km along the Gila River, to approximately Buckeye, Maricopa County, replacing native L. yavapaiensis (Platz et al. 1990, Clarkson and Rorabauch 1989, Platz 1991). A dichopatric population is present in western Chihuahua, Mexico (Smith and Chizar, 2003). It has a elevational range of sea level to 2,595m asl (western Chihuahua).