From Kook Science

Vasitri ("great devil") is an appellation for a wild man figure that originated with the Maipure of the Upper Orinoco River in what is now Colombia and Venezuela. It was described as a "hairy man of the woods" and an "anthropomorphous monkey" by Alexander von Humboldt in his Personal Narrative of Travels to the Equinoctial Regions of America, who added that was it was likewise known as salvaje (from the Spanish, "savage" or "wild") or as achi by the Tamanacs of Cuchivero River, near the lower Orinoco, and that it reputedly "carries off women, constructs huts, and sometimes eats human flesh".