Erythrolamprus typhlus, the blind ground snake or velvet ground snake, is a species of South American snake in the family Colubridae.

It is found in Colombia, Venezuela, Guyana, Suriname, French Guiana, Brazil, Peru, Ecuador, Paraguay, and Bolivia.

The genus Erythrolamprus belongs to the subfamily Dipsadinae, which is sometimes referred to as the family Dipsadidae.

Recent phylogenetic analysis of morphological and molecular DNA evidence has shown that Erythrolamprus typhlus is now likely paraphyletic.

[3] The relationships of Erythrolamprus species located in northern South America can be shown in the cladogram below:[3] E. poecilogyrus (paraphyletic) E. ceii E. poecilogyrus (paraphyletic) E. miliaris E. miliaris Erythrolamprus typhlus (Brazil) (paraphyletic) E. reginae (paraphyletic) E. reginae (paraphyletic) E. zweifeli E. breviceps E. epinephalus (Peru) (paraphyletic) E. epinephalus (Costa Rica) (paraphyletic) E. pseudoreginae E. melanotus E. atraventer E. jaegeri E. almadensis E. juliae E. cursor Erythrolamprus typhlus (French Guiana) (paraphyletic) E. cobella E. aesculapii (Brazil) (paraphyletic) E. ocellatus E. aesculapii (French Guiana & Guyana) (paraphyletic) E. bizona E. mimus