The Western Banded Gecko(Coleonyx variegatus) is a species of gecko found in the southwestern United States (southern California, southwest New Mexico, southern Arizona, Utah, Nevada) and northern Mexico (Sonora, northwest Baja California).
The range of this species in the United States encompasses southern California, southern Nevada, southwestern Utah, western and southern Arizona (including the Little Colorado River Basin; Persons and Nowak, 2004), and extreme southwestern New Mexico. In Mexico the species occurs throughout Baja California (except high mountains) and in western Sonora (Grismer 2002, Stebbins 2003). Coleonyx variegatus also occurs on islands in the Gulf of California and off the western coast of Baja California. Its elevational range extends from below sea level in desert sinks to about 1,520 m (5,000 feet).