Thread subject: Diptera.info :: Therevidae_2
Posted by
jhstuke on 27-10-2007 12:11
#1
the second species
#2
some kind Thereva sp. It is a female. (I think).
Posted by
Zeegers on 27-10-2007 13:59
#3
Vittae on thorax suggest plebeja / strigata, however, long shot.
Spring or summer ?
Theo
Posted by
Kahis on 27-10-2007 14:05
#4
By the shape of the frontal callus and the broad, strong stripes: probably
Thereva microcephala. It is a boreomontane species - where did you find this specimen? Flight time is listed as June-August.
Posted by
jhstuke on 28-10-2007 19:01
#5
The black spot on the frons doesnt reach to the eye - that doesn?t fit to plebeja / strigata. The grey bands at the margin of T3 and T4 are complete - that doesn?t fit to microcephala.
Which species have such distinct grey stripes on the mesoscutum?
Jens-Hermann
Posted by
Kahis on 28-10-2007 19:24
#6
Are you sure the grey bands are complete. They look rather interrupted to me, at least on T2 and T4?
Then again, I've been wrong before
Posted by
jhstuke on 28-10-2007 21:48
#7
Dear Kahis!
At least I am quite sure that there has been a complete grey band and the dark spots didn?t reach the back. But I have never seen microcephala and I don?t know how this species looks like. But I have a good starting point and will compare the specimen with microcephala.
Thank you very much for the valuable help!
Jens-Hermann
Posted by
Maddin on 30-10-2007 18:38
#8
Kevin Holston also agrees with this being microcephala...
Cheers
Martin
Posted by
jhstuke on 30-01-2008 16:43
#9
Thereva microcephala, female