This is a medium-sized saurian taxon with a snout-vent length ranging between 80 and 100 millimeters, accompanied by an exceptionally long tail that can easily double its body length. Its dorsal coloration is highly distinctive, featuring a background of olive-green, yellowish, or brownish tones, highlighted by two conspicuous bright yellow or light green dorsolateral stripes. The back is patterned with dark, V-shaped transverse bands. The scales are heavily keeled and imbricated, giving the skin a notably rough texture. Its ventral region is mostly whitish or pale gray, sometimes showing yellowish tints in males during the breeding season.
Geographical distribution: This reptile is native to the southern cone of South America, with a broad distribution throughout central and southern Chile, spanning from the Coquimbo Region south to the Los Lagos Region. Additionally, its range extends into western Argentina, particularly in the montane and transitional areas of the Neuquén and Río Negro provinces along the Andean slopes.
Habitat: It primarily occupies sclerophyllous shrublands, open forests, and transitional brush zones. It is highly adapted to Mediterranean-type climates, showing a strong preference for microhabitats with abundant shrub cover, exposed rocky outcrops, and fallen logs that facilitate basking. Its altitudinal range extends from sea level up to approximately 2,000 meters above sea level in the Andes.
Feeding: It has a primarily insectivorous and opportunistic diet. It feeds on a diverse array of terrestrial invertebrates, including beetles, ants, grasshoppers, flies, and various spiders. It employs a sit-and-wait hunting strategy combined with short, active search bursts, relying on keen eyesight to detect prey movement before launching quick, precise strikes.
Behavior: This species is strictly diurnal and heliothermic, spending significant parts of the day basking on rocks or branches to regulate its body temperature. It is highly scansorial and agile, climbing deftly through bushes and low tree branches to escape predators. Its most unique behavioral trait is the ability to emit a high-pitched vocal squeak or distress cry when captured or threatened, a very rare acoustic communication capability among members of the Liolaemidae family.
Reproduction: The reproductive cycle of this species is strictly oviparous, with mating behaviors commencing in early spring. Gravid females deposit a clutch of 2 to 6 flexible-shelled eggs during late spring or mid-summer. These clutches are carefully buried under loose, moist soil, flat rocks, or decaying logs, where ambient heat and humidity incubate the eggs until the miniature juveniles hatch.
Conservation status: It is currently classified as Least Concern (LC) on the IUCN Red List due to its extensive geographical range and relatively stable overall population. Nevertheless, local populations face localized threats from habitat loss and fragmentation driven by agricultural expansion, devastating wildfires, urban development, and predation by invasive domestic species such as feral cats.
Compilation and publication: EcoRegistros – 01/09/2026