Lack of Female horror icons

I think a woman was the villain in sleepy hollow.

It isn't really horror, but that girl who played juno was in this suspense film called hard candy where she wasn't really the villain, but she was certainly the scarier character even though she was the protagonist.

Yeah one of the main villains in Sleepy Hollow was played by

Spoiler:
Miranda Richardson.

Whilst I agree there are no horror icons on the same level as Jason, Michael, Freddy and Leatherface there are still a few lurking around:

The Blair Witch

Regan MacNeil (The Exorcist) - although I believe the demon that possessed her was male.

Lady Summerisle (Wicker Man remake)

The Alien Queen 😉

Annie Wilkes (Misery)

Amanda Young (SAW)

Sil (Species)

The Nanny (The Nanny)

Ayesha (She)

Christina (Frankenstein Must Be Destroyed) - although the soul that was given to her was that of a man

Julia Cotton (Hellraiser 1 & 2)

Female Cenobite (Hellraiser 1 & 2)

Angela - Night of the Demons
Angela - Sleepaway Camp