---

Thanks for that, Andrzej. But I have to say I am surprised. As well as the shape of the surstylus, the size of the epandrium looks a much better fit to Gorodkov's serrata. What leads you to captiosa?

I have a photo at home that I took from Diptera.info of a captiosa surstylus, from Berlin by Ralph Sipple, which is a close fit to Gorodkov's captiosa and different from my photo. For some reason, I can no longer find that post on Diptera.info, but I can repost the photo to this thread if that is allowed. But it will have to be after Easter.

John