Villa is a genus in the bee-fly family (Bombyliidae). Like its bee-fly kin, adult Villa feed on nectar and pollen, so are pollinators. Unlike many of its bee-fly kin, the Villa species are characterized by having clear wings. This one (possibly a Villa arenicola) was cavorting on flowers and leaves near the shoreline.
Wonderful, I have a lakeside villa, albeit not a particularly Italianate one.