GHOSTS: La Sayona (Sack Cloth Woman)

La Sayona (Sack-Cloth Woman) is a ghostly woman who appears to men working in the jungle in Venezuela. She manifests when men talk to their coworkers about sex or about the women they left behind in their hometown. She appears as a beautiful woman or a specific woman that the man is thinking of. She is typically wearing a sack dress. She will lure them into the forests show a beast-like or rotting-like appearance and may have sex with the man and mangle and devour the man. She will then leave them for others to find. This young woman used to hold the name Casilda before her curse.

Casilda was the most beautiful girl in her small town on the plains of Venezuela. She would marry a great man and the two would have a baby boy. Even though her husband was caring and loving there was some doubt in Casilda's heart.

Casilda would bathe alone in the nearby river unknowing that a man was watching her do so. One day Casilda would catch the man staring at her. She would demand the man to leave. The man caught decided to lie to get out of the situation. "Your husband and mother are having an affair." 

This would enrage her and she would run back home. Seeing her husband sleeping with the baby in his arms filled her with rage at his betrayal. She would be blinded with rage and set the fire killing her family. While villagers could hear the screams and tried to help the father and son Casilda went to her mother's home. 

Her mother was sitting on the patio. Her mother not knowing what was going to happen saw her beautiful daughter. Unfortunately, it wasn't a pleasant visit as Casilda was determined to end those who wronged her. Casilda would use a machete striking her mother in the stomach. With her mother's last dying breath she would curse her "From now on Casilda you will have to avenge all women by killing their unfaithful husbands."

This was when Casilda became La Sayona.

SOURCES:

Villians Wiki

Urban Legendpedia

Moon Mausoleum