Mexico here (not precisely south america, but, well...).
The country has a rich story of horror and luchador comics and movies, some of them dealing with she-monsters.
Ten years ago, Cartoon Network's mexican branch produced a series of Santo shorts with female werewolves as enemies in the first episode:
https://www.youtube.com/watch?v=PhBOxIzlF3c
The she-wolves come from this old movie, Santo vs. las Lobas:
http://yearofelsanto.blogspot.mx/201...-santo-vs.html