The Erinyes - Servants of the Underworld
The Erinyes were three sisters who dwelled in the Underworld and punished sinners. They served Hades and Persephone making sure that punishments were carried out properly, but sometimes would leave the Underworld to pursue living men and women who had committed crimes against natural order. They are depicted as hideous winged women with snakes around their waists and in their hair.
This post is for Greek Mythology Challenge Day 4 - The Underworld
Information on the challenge here.