Umm al-Duwais

Umm al-Duwais is a figure of Emirati and Gulf folklore: a beautiful woman with a cat's eyes who calls men to follow her, then turns into a frightening old woman and kills them. In Qatar she is called Umm Ghannan.

Umm Hassan, an Emirati woman in her sixties, told the story to Emarat Al Youm in 2010. In her telling, Umm al-Duwais is a woman of great beauty, young and like the full moon, with long hair, scented with musk and ambergris and adorned with gold. Anyone who looks closely sees she has a cat's eyes, which mark her as other than human. Her soft voice is one men cannot resist. When she meets men she asks them to follow her, and once they stand before her she changes into a terrifying old woman and kills every man she has drawn in.

Arabic Wikipedia says that although she belongs to Emirati heritage, her stories are told across the Gulf, in Oman, Saudi Arabia and Qatar, and on the stretch of the Iranian coast where Huwala Arabs live. It puts this spread down to the historical, trade and language ties between Gulf peoples and to oral storytelling handed from one generation to the next. In some villages, Al Madam in the UAE among them, the story has its own local flavour, is told in closer detail, and forms part of the community's identity.

Wikipedia's page on Qatari folklore describes Umm Ghannan, known elsewhere in the Gulf as Umm al-Duwais, as a female jinn of legend who lives in abandoned places. It says she takes a woman's form to seduce and kill young men.