Lampropeltis triangulum andesiana, commonly known as the Andean milksnake, is an alpine subspecies of milk snake.

The Andean subspecies of milk snake occurs in the Andes mountains of Colombia and Venezuela.

Andean milksnakes inhabit high altitude forests and grasslands, up to 9,000 feet (2,700 m) in elevation.

Unlike most nonvenomous snakes, which are mottled gray and brown for camouflage, Andean milk snakes are brilliantly colored (although adults are often duller than juveniles, having an almost dusky appearance)[1] in red, yellow, and black.

Andean milk snakes use this bright coloration to fool potential predators into believing that they are also venomous, and too risky to eat.

Two rhymes that describe the stripe pattern of these snakes are: "Black 'round yellow, harmless fellow.