There are more then one species of scorpion in the film. Scorpions of the Tityus stigmurus complex are all called "yellow scorpion" in general in Brazil. One of the scorpions in the film is Tityus serrulatus as the tergites are dark an do not have a longitudinal stripe over the tergites as in the other two species of the stigmuruscomplex.
Another looks like T.bahiensis, because of the darkened patella. T.serrulatus, stigmurus and bahiensis are said to be responsible for most cases of scorpionism in Brazil.