Bencao gangmu
Li Shizhen's (1578) "Bencao Gangmu" "Compendium of Materia Medica" quotes this under the "Wangliang" entry. "Fangliang mentioned here is actually Wangliang. Wangliang loved to eat the livers of the dead, so people had to drive it away from tombs. It was afraid of tigers and arborvitae trees. That is why people placed stone tigers and plant arborvitae trees in graveyards." translates "wangliang" as "a sprite, an elf, the four eyed naiad".