Thread subject: Diptera.info :: Rhagionidae: Rhagio tringarius
Posted by nick upton on 12-11-2020 12:45
#1
12mm 20.5.20 in a hedgerow, Wiltshire, UK. I think this is R. tringarius rather than the much more common R. scolopaceus as it lacks the dark wing stigma, but am not sure how to be sure it isn't the extremely rare R. annulatus the only UK confusion species s far as I know. I don't have a better angle on the wings to check the humerus colour.
Posted by EsinM on 12-11-2020 14:11
#2
Definitely not a Rh.scolopaceus.
Edited by EsinM on 12-11-2020 14:31
Posted by libor on 12-11-2020 14:59
#3
You are right, Nick, Rhagio tringarius it is - yellow pterostigma and yellow humeral callus are diagnostics for this species.
Posted by EsinM on 12-11-2020 15:09
#4
I'm concerned about the black femur in the apical part. Could it be a Rh. nonatus?
Posted by Zeegers on 12-11-2020 15:38
#5
No tringarius it is (which is, by the way, more common than scolopaceus these days !). notatus has dark stigma and dark ring in femur 1. Tringarius is extremely variable !
Stop worrying: tringarius !
Theo
Posted by nick upton on 12-11-2020 16:48
#6
Many thanks Theo for your swift, expert reply. Much appreciated.
Nick