Strega: Strega literally means, "Witch", under research.
Stregoni benefici: under construction, reportedly not an evil creature, in fact an ally against evil/bad vampires.
Strix: This creature was a night demon from ancient Rome, which attacked infants, Ovid described them in Fasti. This Strix developed into the Stegra - a woman who flies about in bird form and attacks infants. These were also chronicled in the Saxon capitulary of Charlemagne in 781.