endemic to a single state or province
Regularity: Regularly occurring
Type of Residency: Year-round
Global Range: Range includes south-central Arizona and possibly adjacent Sonora, Mexico (Stebbins 2003, Walker and Cordes 2011).
Distribution: USA (S Arizona, New Mexico), Mexico (Sonora)
Type locality: La Posa, 10 miles northwest of Guayamas, Sonora (fide SMITH & TAYLOR 1950: 185) xanthonotus: Ajo Mountains, Pima County to the Sierra Estrella near Phoenix, Maricopa County, Arizona. stictogrammus: C Arizona and Mexico southward through Sonora and probably N Sinaloa, and the northern parts of Chihuahua and Coahuila.
Type locality: Yank Springs, 6 miles southeast of Ruby, Santa Cruz County, Arizona.
Catalog Number: USNM 132456
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Year Collected: 1948
Locality: Ruby, 6 mi SE of, Yank Springs, Santa Cruz, Arizona, United States, North America
- Holotype: Burger, W. L. 1950. Natural History Miscellanea, The Chicago Academy of Sciences. (65): 5.
Habitat and Ecology
IUCN Red List Assessment
Red List Category
Red List Criteria
National NatureServe Conservation Status
Rounded National Status Rank: N2 - Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G2 - Imperiled
Names and Taxonomy
Comments: Reeder et al. (2002) examined phylogenetic relationships of the whiptail lizards of the genus Cnemidophorus based on a combined analysis of mitochondrial DNA, morphology, and allozymes. They determined that Cnemidophorus in the traditional sense is paraphyletic and thus in need of nomenclatural revision. Rather than subsume all cnemidophorine species (including Kentropyx) in a single large genus (Ameiva), they proposed a split that placed the North American "Cnemidophorus" clade in the monophyletic genus Aspidoscelis; under this arrangement, South American taxa remain in the genus Cnemidophorus.
Under the genus Cnemidophorus, Stebbins (2003) retained xanthonota as a subspecies of A. burti. de Queiroz and Reeder (in Crother 2008, 2012) accepted A. xanthonota as a species, based on Collins (1991).