Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae Strongygaster? no, Opesia sp.
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| Frank Marquard |
Posted on 29-09-2010 20:10
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Member Location: Germany Posts: 235 Joined: 06.09.08 |
Size ~7,5mm , found at 29. September 2010, middle Germany, border of a pinewood. Regards Frank Frank Marquard attached the following image:  [70.13Kb] Edited by Frank Marquard on 01-10-2010 11:51 |
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| ChrisR |
Posted on 29-09-2010 21:12
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Very interesting - Opesia maybe?
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Frank Marquard |
Posted on 29-09-2010 22:12
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Member Location: Germany Posts: 235 Joined: 06.09.08 |
Hello Chris, Opesia would be also a good choice, thanks for hint! Add again another point of view, whether it helps? Regards Frank Frank Marquard attached the following image:  [55.66Kb] |
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| ChrisR |
Posted on 29-09-2010 22:44
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
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 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 30-09-2010 17:45
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
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 |
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| Frank Marquard |
Posted on 30-09-2010 19:53
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Member Location: Germany Posts: 235 Joined: 06.09.08 |
Hello Chris and Theo, many thanks for Id and further explanations! A relatively rarely found Genus seems to be? Regards Frank |
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| ChrisR |
Posted on 30-09-2010 20:37
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
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
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 30-09-2010 20:44
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
it is an eastern / more Asian genus. Theo |
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| ChrisR |
Posted on 30-09-2010 23:44
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
That explains why Moscow museum has quite a few Opesia grandis then 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 01-10-2010 09:13
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
Yes, it does I got grandis in Siberia Theo |
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| Frank Marquard |
Posted on 01-10-2010 11:41
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Member Location: Germany Posts: 235 Joined: 06.09.08 |
Thanks for further informations - exciting! The species today again found. This time with lateral view. Regards Frank Frank Marquard attached the following image:  [68.57Kb] Edited by Frank Marquard on 01-10-2010 12:30 |
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| Frank Marquard |
Posted on 01-10-2010 11:49
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Member Location: Germany Posts: 235 Joined: 06.09.08 |
Another "dorsal Shoot" from today
Frank Marquard attached the following image:  [74.37Kb] |
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| ChrisR |
Posted on 01-10-2010 13:29
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Oh man ... someone get a net on a few! 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. Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 01-10-2010 19:55
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Member Location: Soest, NL Posts: 19308 Joined: 21.07.04 |
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 |
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