Umbrivaga pyburni Markezich & Dixon, 1979 Erythrolamprus pyburni, Pyburn's tropical forest snake, is a species of snake in the family Colubridae.

The species is endemic to Colombia.

[1][2] It is only known from its type locality, Loma Linda in the Meta Department.

[1] The specific name, pyburni, is in honor of American herpetologist William Frank "Billy" Pyburn [fr] (1927–2007).

This snake article is a stub.