Species: boitata
Boitatá is the Brazilian equivalent of the will-o-wisp. The name comes from the Old Tupi mboî tatá, meaning "fire serpent".
According to legend, Boitatá was a big serpent which survived a great deluge and then went through the fields preying on the corpses, eating exclusively their eyes. The collected light from the eaten eyes gave "Boitatá" its fiery gaze.
This tag implicates brazilian_mythology (learn more).