Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae - Macquartia dispar/viridana
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| tim worfolk |
Posted on 17-06-2009 09:02
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 Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
I'm fairly sure this is the same sp. as one I requested ID for a week or two back - here http://www.dipter...d_id=22037 However, I'm not completely convinced so could someone confirm or correct? photographed 9/6/2009; Devon, England. Thanks Tim tim worfolk attached the following image:  [116.55Kb] Edited by tim worfolk on 04-07-2009 12:47 |
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| ChrisR |
Posted on 17-06-2009 11:06
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
I am not sure what it is but it isn't Pelatachina - this one has hairy eyes and Pelatachina has bare eyes. It looks like it could be something really interesting though so I hope someone can offer some suggestions but without a specimen I am a bit lost 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tim worfolk |
Posted on 17-06-2009 13:50
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Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
Thanks Chris. Actually the hairy eye was one of the reasons why I wasn't 100% certain, seems I was right to be unsure. Lets hope Theo sees this and can come up with something. Tim |
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| ChrisR |
Posted on 17-06-2009 13:54
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Do you have any other angles? Perhaps a look at the face or a dorsal shot that shows the wings better?
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tim worfolk |
Posted on 17-06-2009 14:26
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Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
Unfortunately no. This was one that sat still long enough to get 4 shots off - all the same angle, but when I moved the tripod to get a different view it flew. I can offer much higher resolution pictures, though I guess that probably won't help. Tim |
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| neprisikiski |
Posted on 17-06-2009 17:00
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
probably Macquartia viridana
Erikas |
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| ChrisR |
Posted on 17-06-2009 17:25
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
It would certainly be a very nice record if it is M.viridana - it's quite rare here in the UK. I only have 2 specimens - both from Europe
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| tim worfolk |
Posted on 18-06-2009 10:21
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Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
Thanks for your suggestion Erikas; but given the rarity of M.viridana in Britain, is another Macquartia sp. a possibility? From my limited researches, don't the reddish femora also suggest M.dispar? I really hesitate to stick my neck out - this is an area in which I am a complete beginner. I'm just trying to keep the debate going in the hope of some king of resolution. Thanks Tim |
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| neprisikiski |
Posted on 18-06-2009 23:16
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Member Location: Lithuania Posts: 876 Joined: 23.02.09 |
the reddish femora could also suggest dispar, but the latter species is not so intensively dusted in my experience
Erikas |
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| tim worfolk |
Posted on 19-06-2009 09:12
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Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
And I guess the length of the pre-alar bristle is not much help from this angle either. This sounds like it could be an interesting record but I suspect it will be just another that got away. The frustrations of photography... Thanks for all your help Tim |
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| Zeegers |
Posted on 01-07-2009 21:08
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Member Location: Soest, NL Posts: 18782 Joined: 21.07.04 |
the males of viridana and dispar are clearly different, but the females are very similar indeed. Hardly to distinguish, actually. And, of course, this is a female ... so, to me it is dispar/viridana, and given the date dispar is the first guess. Theo |
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| tim worfolk |
Posted on 01-07-2009 21:46
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Member Location: Devon, England Posts: 737 Joined: 05.05.09 |
Thanks Theo, kind of you to take the trouble. Looks like I'll have to find the male, then. Tim |
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