mystery fly: Loncheidae?

mystery fly: Loncheidae?

Observation - mystery fly: Loncheidae?. Description: A small, very bulbous and very shiny fly visiting flowers in a hay meadow. I have no idea what this is, with my best guess being Loncheidae. The problem is that the antennae don't really fit anything I've seen pictures of.

A small, very bulbous and very shiny fly visiting flowers in a hay meadow. I have no idea what this is, with my best guess being Loncheidae. The problem is that the antennae don't really fit anything I've seen pictures of.