Thread subject: Diptera.info :: Tachinidae Strongygaster? no, Opesia sp.

Posted by Frank Marquard on 29-09-2010 20:10
#1

Size ~7,5mm , found at 29. September 2010, middle Germany, border of a pinewood.

Regards

Frank

Edited by Frank Marquard on 01-10-2010 11:51

Posted by ChrisR on 29-09-2010 21:12
#2

Very interesting - Opesia maybe?

Posted by Frank Marquard on 29-09-2010 22:12
#3

Hello Chris,

Opesia would be also a good choice, thanks for hint!
Add again another point of view, whether it helps?

Regards

Frank

Posted by ChrisR on 29-09-2010 22:44
#4

Well, I have only see Opesia grandis, which looks very different but there is something about this that fits. Also, I can't think what else it could be - but it doesn't look like Strongygaster to me :)

Posted by Zeegers on 30-09-2010 17:45
#5

Yes, it is Opesia. Not clear which species though. Yellow calypter contradicts cana, whereas three vitta on front of thorax contradicts grandis. Might even be descendens (!?), see short pulvilli


Theo

Posted by Frank Marquard on 30-09-2010 19:53
#6

Hello Chris and Theo,

many thanks for Id and further explanations!
A relatively rarely found Genus seems to be?

Regards

Frank

Posted by ChrisR on 30-09-2010 20:37
#7

I'd say so ... I never caught one and haven't seen any modern records for the UK. I have never been given one from Europe either, so they must be quite unusual :)

Posted by Zeegers on 30-09-2010 20:44
#8

it is an eastern / more Asian genus.


Theo

Posted by ChrisR on 30-09-2010 23:44
#9

That explains why Moscow museum has quite a few Opesia grandis then :D

Posted by Zeegers on 01-10-2010 09:13
#10

Yes, it does

I got grandis in Siberia


Theo

Posted by Frank Marquard on 01-10-2010 11:41
#11

Thanks for further informations - exciting!
The species today again found. This time with lateral view. :)

Regards

Frank

Edited by Frank Marquard on 01-10-2010 12:30

Posted by Frank Marquard on 01-10-2010 11:49
#12

Another "dorsal Shoot" from today

Posted by ChrisR on 01-10-2010 13:29
#13

Oh man ... someone get a net on a few! :D

Opesia is another one of these unusual genera that occur in little pockets, I think. The populations are very restricted in geographical distribution but where they occur they are fairly stable. Ivan Perry discovered Opesia grandis very close to his home (first record for the UK and *very* rare in Western Europe) and now finds them every year in his garden (he has collected a few pairs) ... but they have never been found anywhere else in the county.

Posted by Zeegers on 01-10-2010 19:55
#14

Frank START COLLECTING if you please.

I'm not familiar with the species, but it really looks like O. descendens. Also, the period of flight clearly indicated descendens.

Tomorrow morning there is still good weather in Germany

If you please


Theo