Mara

Mara are a crude subspecies of sincubus which employ more forceful methods of feeding on sexual energy. As of The Great Filter, Mara are considered extinct.

Appearance
It is not necessary for a mara to have an enticing appearance, as they do not seduce their prey. Mara are often common-looking to fit in with their surrounding population, but some subspecies interbreeding has led to more attractive appearing mara.

Behaviour
Mara target sleeping victims. By injecting a venom that renders their prey paralysed, the Mara is able to rape the victim while they sleep. The mara draw on sexual energy at such a rate that it is almost impossible for a victim to live through the ordeal. Victims are often found the morning after being preyed upon and are diagnosed to have died from a heart failure.