Dryope flaveola -

Formerly Dryomyza, this is a species which is consistently showing up in a baited bottle trap in woodland right now. These are especially dark individuals which seems to be a feature of a winter generation.

If it turns out they develop in the bait that will be a new discovery about this fly (I think) as no-one seems to have previously nailed down this part of their life cycle.

The Dryomyzidae have undergone a fair bit of shuffling it seems and I haven't entirely got my head around what went where taxonomically!