Thread subject: Diptera.info :: Campiglossa
Posted by kurt on 27-04-2009 23:14
#1
Is it difficilis or gutella? Body 3-4 mm.
On Tussilago farfara
Photo from tre lokalites round Kramfors Sweden 62N 17E 27 april 2009
Thanks for your help in advance
Regards
Kurt Holmqvist
Posted by kurt on 27-04-2009 23:15
#2
One more pic on same fly
Posted by kurt on 27-04-2009 23:16
#3
Picture from Nattsjön 27 april
Edited by kurt on 27-04-2009 23:18
Posted by kurt on 27-04-2009 23:19
#4
Picture from Skällsjön 27 april
Edited by kurt on 27-04-2009 23:22
Posted by Nosferatumyia on 28-04-2009 19:34
#5
Dear Kurt, no external characters work with certainty for these two species. Inthe females, they clearly differ by the length of the ovipositor, in males, by the phallus structure. I'd say its wing pattern is more common for difficilis, but only 30-40% specimens can be discriminated by the wing pattern along.