Gualgura
The gualgura is an Ecuadorian legend about a black chick with an attractive voice and an innocent appearance. However, when it decides to attack, it transforms into a man with a deep voice that can persuade and hypnotizes people, leaving them unconscious or even dead. The gualgura only appears at night.[1]
The myth of the gualgura is widely known among the Afro-Ecuadorian communities in the Pacific province of Esmeraldas. It is associated with other myths of the province: la tunda, el bambero, el duende, la bruja, and el riviel.[2][3]