Thread subject: Diptera.info :: Dixidae

Posted by Cranefly on 01-03-2023 08:21
#1
I determined this exemplar as Dixa puberula=D.sobrina.
I would be very grateful if a specialist can confirm this definition.
Material from Nature park near Moscow University, specimen trapped near stream running down a hill.

Posted by Cranefly on 01-03-2023 08:22
#2
one more photo

Posted by Cranefly on 01-03-2023 08:22
#3
One more photo

Posted by Cranefly on 01-03-2023 08:32
#4
one more photo

Posted by Jan Willem on 01-03-2023 08:42
#5
How about D. submaculata?

Posted by Cranefly on 01-03-2023 09:53
#6
Gonistylus is relatively broad and cylindrical, narrowing at the most apex. Gonocoxite with small apical internal projection covered with hairs. And some more small paired sclerotized structure (paramere?) is hooked, curved.

Posted by Jan Willem on 01-03-2023 16:06
#7
According the key of Disney (1999) in D. puberula there is typically a small dark cloud over the angle between veins R1 and Rs, but no clouding behind the angle of Cu1 where this vein is joined by the cross vein mCu.
In your specimen it seems to be exactly the opposite.
Edited by Jan Willem on 01-03-2023 16:07

Posted by Cranefly on 01-03-2023 18:44
#8
Many thanks. I'll check it once more. I don.t know external characters well because never determined Dixidae before.

Posted by Jan Willem on 02-03-2023 11:39
#9
My experience with identifying Dixidae is also very limited (I only did so once).
Maybe someone with more experience can also give feedback.