Western Ribbon Snake
Thamnophis proximus

Statewide, except for the tip of the panhandle.  The western ribbon snake is a close relative of the garter snakes. It is a long slender snake with the characteristic stripes of the garter snakes, but with little to no coloration between the stripes, tending to look more like a black ribbon with three stripes, which can vary from yellow to white, usually with a whitish belly, and occasionally with a blue tint. Like many members of the family Natricidae, they eat fish and frogs, as well as insects and worms. They also tend to be a little more arboreal than the garter snakes, taking to the trees to avoid predation.