Southwestern Fence Lizard vs. Common Side-blotched Lizard

Both are small brown lizards common on rocks and open ground in eastern and southern Arizona. A: No dark blotch; blue belly patches in males in the Southwestern Fence Lizard; one dark blue-black blotch on each side in the Common Side-blotched Lizard. B: Big, keeled, overlapping spiny scales in the Southwestern Fence Lizard; small scales, only mildly keeled in the Common Side-blotched Lizard.

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