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Zstylzhemghi, also known the Matriarch of the Swarm, is a Great Old One created by Clark Ashton Smith. She first appeared in Selected Letters of Clark Ashton Smith 189.


Zstylzhemghi was born on the green binary star system of Xoth, who mated with fellow Great Old One Ghisguth, and produced the infamous Tsathoggua.

She is often described as a monstrous insectoid creature. But like most Lovecraftian beings, he true form would incomprehensible for humans.

Family Tree


  • Zstylzhemghi was created by Clark Ashton Smith in 1934, 2 years before the death of H.P. Loveceaft himself.


           Cthulhu Mythos Logo Villains

Outer Gods
Abhoth | Azathoth | Cxaxukluth | Daoloth | Ghroth | Hydra | Lu-Kthu | Nyarlathotep | Shub-Niggurath | Ubbo-Sathla | Yhoundeh | Yibb-Tstll | Yog-Sothoth

Great Old Ones
Aphoom Zhah | Baoht Z'uqqa-mogg | Bokrug | Byatis | Crom Cruach | Cthugha | Cthulhu | Cthylla | Cyäegha | Eihort | Father Dagon | Ghatanothoa | Gla'aki | Hastur | Mother Hydra | Ithaqua | M'nagalah | Rlim Shaikorth | Shambler from the Stars | Tsathoggua | The Worm That Gnaws In The Night | Y'golonac | Yig | Ysbaddaden | Ythogtha | Zoth-Ommog | Zstylzhemghi | Zvilpogghua

Hostile Species
Deep Ones | Elder Things | Flying Polyps | Hounds of Tindalos | Horsemen of Nyarlathotep | Many-Angled Ones | Mi-gos | Shan | Shoggoths

The Black Brotherhood | Brotherhood of the Beast | Brotherhood of the Black Pharaoh | Brotherhood of the Skin | Brotherhood of the Yellow Sign | Chesuncook Witch Coven | Chorazos Cult | Church of Starry Wisdom | Cult of the Bloody Tongue | Esoteric Order of Dagon | The Slaves of the Flame Undying

Abdul Alhazred | Brown Jenkin | Colour Out of Space | Dunwich Horror | Ephraim Waite | Herbert West | Keziah Mason | Master of the Monolith | Obed Marsh | Player from Beyond the Void | Terrible Old Man | Walakea

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