Description: Adults are 22 to 47 inches in length. A thin light gray to light brown snake with a light wide stripe of white, gray or yellow running down the back with parallel bordered black stripes The dark stripes are distinct and have clean edges. This species has a large, triangular free-edged rostral scale. Belly white or pinkish white.

Habitat: S. grahamiae can be found in rough terrain, rocky canyons, plateaus and mountain slopes. Found usually above 4,000 feet. Found in open woodland forests and in forests in mountains.

Range: S. grahamiae is found in Arizona, New Mexico, and Texas, and in the Mexican states of Chihuahua, Coahuila, Querétaro, Tamaulipas, and Veracruz.

Found in these States: AZ | NM | TX

Diet: S. grahamiae preys predominately upon lizards, especialy those of the genus Aspidoscelis. It also eats reptile eggs, small snakes, nestling birds, and small mammals.

Reproduction: S. grahamiae is oviparous. Eggs are laid in April to June, and clutch size is 5 to 10 eggs.

Status: Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining.

Taxonomy: