Leptophis mexicanus

Leptophis mexicanus, commonly known as the Mexican parrot snake, is a species of medium-sized slender snake in the family Colubridae. The species is endemic to the Americas.
Geographic range.
"L. mexicanus" can be found in southern Mexico and Central America, in Guatemala, Belize, Honduras, El Salvador, Nicaragua, and Costa Rica.
Subspecies.
There are four recognized subspecies, including the nominate subspecies.