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Common Sagebrush Lizard vs. Prairie Lizard

Two spiny lizards of the same genus with the same plan: grey-brown, a pale stripe along each side of the back, and blue belly patches in males. A: the Sagebrush Lizard is smaller, with smaller, finer scales on the back; the Prairie Lizard's are larger and strongly keeled, each ending in a spine. B: the Sagebrush Lizard often has rusty orange in the armpit and a black bar on the shoulder. The surest mark needs the lizard in hand: the scales on the rear of the thigh are tiny and granular in the Sagebrush Lizard, keeled and pointed in the Prairie Lizard. In South Dakota the Sagebrush Lizard lives only in and around the Black Hills.

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Common Sagebrush Lizard

Sceloporus graciosus

Prairie Lizard

Sceloporus consobrinus
Common Sagebrush Lizard vs. Prairie Lizard: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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