Thread subject: Diptera.info :: Thecophora

Posted by jostein on 22-01-2020 18:01
#1

Hi
I wonder if anyone could help with this Thecophora from SE Norway mid July last year.
We've been trying to key it using van Veen, but we are unsure about how to interpret the theca and we don't have any material for comparison.
If we go for round and wide, which we think fits best, we land pretty steady on T. bimaculata. The problem is that this is stated to belong in southern and central Europe, which Norway can hardly be assigned to.
If we go for the other choice on theca we kind of land on T. atra which would clearly be a much more likely result, but we can't find anything to suggest that T. atra can have twocoloured femora to the extent that our specimen does.
Any input would be very welcome.

Jostein

Edited by jostein on 23-01-2020 10:03