Lemures

In Roman mythology, lemures (singular lemur) were shades or spirits of the restless or malignant dead, and are probably cognate with an extended sense of larvae (sing. larva = mask) as disturbing or frightening. Lemures is the more common literary term but even this is rare: it is used by the Augustan poets Horace and Ovid, the latter in his Fasti, the six-book calendar poem on Roman holidays and religious customs.