La Sayona is a legend from Venezuela, represented by the vengeful spirit of a woman that shows up only to men that have love affairs out of their marriages.
The name "Sayona" refers to the cloth the ghost wears which is a long white dress similar to a medieval undergarment.
The legend claims that when this woman appears she asks for a ride, and after a while when the victim tries to see her face, he notices that she has instead a skull with horrible teeth.
As the mother bled to death, she cursed Casilda telling her that from then on she would have to avenge all women by killing their unfaithful husbands.
Sayona appear to such men, assuming the likeness of beautiful woman, or a loved one, and lures them into the forest so she could reveal her animal-like features and devour them, or mangle them, leaving their wretched bodies for their companions to find.