Diptera.info :: Identification queries :: Diptera (adults)
 Tachinid sp - UK
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| tristanba |
Posted on 20-07-2009 20:59
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 Member Location: UK Posts: 97 Joined: 29.05.07 |
This fly from Box Hill, Surrey (chalk downland) last week - all help much appreciated Thanks Tristan tristanba attached the following image:  [83.94Kb] |
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| ChrisR |
Posted on 20-07-2009 21:08
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Looks very interesting (it is very grey) - did you get a specimen?  My guess is Demoticus plebejus - a real rarity
Edited by ChrisR on 20-07-2009 21:16 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tristanba |
Posted on 20-07-2009 21:27
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Member Location: UK Posts: 97 Joined: 29.05.07 |
Thanks Chris - an interesting species, obviously not well-known. I saw quite a number on umbel heads. No specimen but here is another photo, not sure if it shows any additional characters
tristanba attached the following image:  [87.95Kb] |
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| ChrisR |
Posted on 20-07-2009 21:41
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Well, I have seen a handful of Demoticus in my life and I don't have one handy to look at right now, so let's wait for Theo to "OK" it The photos would look good in the gallery though, when we get a confirmed ID If you look at the photos on my website (here) then you'll see that at least the pattern of bristles and dusting on the thorax looks very similar and the overall appearance is good too. That grey dusting with black bristle bases is quite striking. Edited by ChrisR on 20-07-2009 21:42 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 21-07-2009 19:58
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Member Location: Soest, NL Posts: 19208 Joined: 21.07.04 |
It is somewhere in Demoticus / Bithia. I can't see the arista quite good, but it seems to me that Demoticus is quite likely. And I don't think you have many Bithia in UK, do you ? Theo |
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| Jaakko |
Posted on 21-07-2009 20:38
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 Member Location: Joensuu, Finland Posts: 479 Joined: 04.08.08 |
A vote for Demoticus from here as well. Jaakko |
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| ChrisR |
Posted on 21-07-2009 21:09
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
We have Bithia spreta and demotica in the UK We still list modesta but we suspect that this species was added to the British list in error because all British specimens at the NHM have been reexamined and reclassified as demotica
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tristanba |
Posted on 21-07-2009 22:05
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Member Location: UK Posts: 97 Joined: 29.05.07 |
Thanks for all your comments - here is a more detailed image showing the arista
tristanba attached the following image:  [86.72Kb] |
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| Zeegers |
Posted on 22-07-2009 17:04
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Member Location: Soest, NL Posts: 19208 Joined: 21.07.04 |
Thanks 100 % Demoticus Theo |
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| ChrisR |
Posted on 22-07-2009 21:46
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Great work Tristan  ... and a very nice record too - can you PM me the full details: date, location, grid reference etc?
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tristanba |
Posted on 24-07-2009 11:12
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Member Location: UK Posts: 97 Joined: 29.05.07 |
Thanks to you all - Chris, I have messaged you the details and will also upload images for the gallery All the best Tristan |
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