Widow

Widow was a female youma under the control of Nephrite in episode 016. Her mission was to gather the energy of home economics teacher Higure Akiyama once she reached her peak energy output. Widow has purple hair and two large red eyes along with several smaller red eyes on her forehead. She is somewhat like a cross between a human and a spider. She has a human-like body with orange skin, but she also has a spider-like abdomen which is black with yellow lines as markings. Along with her human-like arms and legs, she has a total of eight appendages. She is able to move at great speeds on all eight of her legs, though when she is stationary, she stands on her two human-like legs.

(Source: The Oracle :: BSSM Encyclopaedia)