Lamia, in ancient Greek mythology, was a child-eating monster and, in later tradition, was regarded as a type of night-haunting spirit or "daimon".
The Kiss of the Enchantress (Isobel Lilian Gloag, c. 1890), inspired by Keats's "Lamia", depicts Lamia as half-serpent, half-woman
Lamia (first version) by John William Waterhouse (1905).
Lamia (second version), with snakeskin on her lap, John William Waterhouse (1909)
A lamia-like creature on the cover of Other Worlds, November 1949.
Geniscus is a deity who appears in a sermon of Saint Eligius along with Neptune, Orcus, Minerva and Diana. These are all, the Christian homilist says, "demons" who should not be believed in or invoked
The late-antique Geniscus may be a form of the Roman Genius, pictured here in a 1st-century BC wall painting