Eastern collared lizard (male)

It has two black rings that form a partial collar around the neck. This species shows sexual dimorphism. The male is blue-green to olive-green with many light spots and a golden or yellow throat. The male has a larger head and larger femoral pores on the underside of the thigh than the female. The female is tan with many lights spots and a white throat. The female develops red bars on the body at the beginning of breeding season. These disappear after the breeding season. The juvenile is tan to yellow with dark bars alternating with yellow to orange bars. (information from "A Field Guide to Amphibians and Reptiles of Oklahoma")