lamia

In fir. and Roman mythology, an enticing witch, who charmed children and youths for the purpose of feeding on their blood and flesh, like the later vampire; a female demon;

A female vampire.

In zoology:

A Fabrician (1775) genus of longicorn beetles, now the type of the family Lamiidæ. L. ædilis is a species the male of which has antenæ) four times as long as the body.