Six-lined Racerunner (Aspidoscelis sexlineata)
Description: 6 - 10½ inches. Six-lined Racerunners have three bright green, yellow, or white stripes on each side. The backs is brown, and may have a faint stripe down the middle. The sides are black or brown between the bright stripes. Older Six-lined Racerunners have a green tint on the front of the body. Males become more green, and even blue during breeding seasons. Young Six-lined Racerunners lack the green and blue colors on the front of the body, but have a powder blue tail.