Lolth

From AJS.COM

Lolth is the demonic greater goddess of drow in the Greyhawk cosmology. She is the demon queen of spiders and lives on the 66th layer of The Abyss, in the Demonweb Pits.

Appearance

Her appearance is that of a woman's head with white hair and dark skin on the body of a giant, black spider, usually resembling the black widow. Sometimes this head is atop the torso of a woman, which is connected to the spider body.