The species of the genus Plagiopholis are found in Southeast Asia, China and Taiwan.

[3][4][5][6][7] The snakes of this genus are mountainous species that can be found in grasses and bushes.

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Plagiopholis.

The specific name, blakewayi, is in honor of a Lieutenant Blakeway who resigned from the British army and collected reptiles in what is now Myanmar.

[9] The specific name, delacouri, is in honor of French-born American ornithologist Jean Théodore Delacour.