Oreocryptophis porphyraceus is a rat snake species, commonly called the black-banded trinket snake, red bamboo snake or red mountain racer, found in mid to upper-level elevations of forested hills in southeastern Asia, ranging from evergreen tropical to dry seasonal forests depending on the subspecies and locality. It is the only member of the genus Oreocryptophis, but it was formerly placed in Elaphe.