- Slender lizard with a comparatively long tail, almost 3 times the head-body length.
Small, granular dorsal scales with enlarged scales in front of throat fold only.
Belly with 8 rows of large, rectangular scales.
- Dorsal ground color is gray.
Dorsal pattern consists of 4-8 light stripes and a mottling of light and dark spots; there are alternating light and dark bars on the sides of the lizard.
Pale peach coloration on throat and chest.
Ventral surface white or pale yellow with possible black flecks on chin, throat, and chest.
Tail gray or greenish gray with black flecks on sides and dark coloration on underside.
Aspidoscelis marmorata can grow to 20-30 cm (8-12 in).
In North America, Aspidoscelis marmorata has a broad range that includes parts of New Mexico, Texas, and adjacent Mexico.
This diurnal lizard forages for insects, spiders and scorpions among vegetation clumps. This species is also extremely wary and will retreat to protective cover or dart into burrow if approached.
Breeding takes place in April and May. Females lay 1-4 eggs in May. A second egg clutch may be laid in July. Hatchlings appear in July and August. Hatchlings with bright blue tail.
Aspidoscelis marmorata prefers sandy areas with little vegetation and open woodlands in arid and semi-arid environments.
The marbled whiptail is not a protected species in Texas and can be legally collected with a hunting license.
In Texas, Aspidoscelis marmorata is found in the western part of the state with isolated populations in the Laredo area.