The Reptiles and Amphibians of Utah

Description: Light brown, gray, or yellowish-brown base color. The dorsal pattern is variable and can consist of dark crossbars, chevrons, or blotches. Scattered yellow or orange scales along the body and tail are common. The head is yellow or orange in color. A dark wedge on each side of the neck above the shoulders. The large overlapping scales are keeled and pointed, giving them a spiny appearance. Males are more colorful than females, especially during the breeding season. Males have blue patches on each side of the abdomen and a blue throat patch. 

Size: A medium-sized, heavy-bodied lizard that averages 8 to 10 inches in total length. 

Range and Habitat: This lizard occurs throughout the Colorado Plateau. It inhabits desertscrub, semiarid benchlands and canyonlands, and riparian habitat. It is often found on cottonwood trees when they are present. It can be found up to about 6,000 feet in elevation.   

Similar Species: The Yellow-backed Spiny Lizard has less distinctive dorsal markings, and its head is often less brightly colored. Range is also a key factor in identifying these lizards.