In a tale from the Metrical Dindshenchas, she is a good sorceress who joins three other of the Tuatha Dé to defeat the evil Greek witch Carman.
[1] According to the Book of Leinster (1150) Bé Chuille was killed, along with Dianann, by "gray demons of air."
[2] In the Lebor Gabála Érenn Bé Chuille and Dianann are called "she-farmers" and mentioned along with their sisters Argoen and Be Theite as the daughters of Flidais.
In Echtrae Airt meic Cuinn (The Echtra, or Adventure, of Art mac Cuinn), Bechuma is married to Eogan Inbir, but commits adultery with Gaidiar, son of Manannán mac Lir, and is banished to the human world.
The druids inform Conn that Bechuma's wickedness has turned his realm into a Wasteland, and she is eventually exiled.