Thread subject: Diptera.info :: Thereva which species

Posted by almaviva on 09-12-2014 23:46
#1
Is it possible to say anything of this Thereva fly? The southern alvar of Öland, Sweden, end of June 2014.

Thanks,
Patrik Hall

Posted by libor on 11-12-2014 08:37
#2
I would say Thereva unica (= bipunctata).
Libor

Posted by almaviva on 11-12-2014 22:56
#3
Looks good, but not entirely. According to Mark van Veens key "Thoracic dorsum with hardly visible greyish stripes, without dark central stripe". That is hardly the case here.But thank you.
Patrik