Range Description

The range extends from southern Oklahoma, southeastern New Mexico, and Texas southward on both sides of the Sierra Madre Oriental to Aguascalientes, Queretaro, and Veracruz, Mexico (Degenhardt et al. 1996, Stebbins 2003). There are some taxonomic problems with identification of specimens in northern central parts of Mexico: if these are resolved and included within A. gularis, the range of this species may be greatly extended.