Diptera.info :: Identification queries :: Diptera (adults)
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 UK Tachinidae Medina sp.
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| sd |
Posted on 29-11-2011 21:01
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
UK, Suffolk. 3rd September 2011 Wet woodland edge, yellowpan trap. Size 5mm approx male Medina luctuosa/separata Maybe my photos are not clear enough to distinguish between these 2 species.  Steve sd attached the following image:  [90.42Kb] |
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| sd |
Posted on 29-11-2011 21:02
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
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sd attached the following image:  [98.12Kb] |
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| sd |
Posted on 29-11-2011 21:03
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
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sd attached the following image:  [87.54Kb] |
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| sd |
Posted on 29-11-2011 21:03
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
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sd attached the following image:  [71.61Kb] |
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| Zeegers |
Posted on 29-11-2011 21:16
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Member Location: Soest, NL Posts: 18538 Joined: 21.07.04 |
It is difficult to get decent pictures at high magnification. As far as I can tell, it should be luctuosa. Theo |
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| sd |
Posted on 29-11-2011 21:37
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
Thanks, Theo, luctuosa was also my decision when looking through a microscope, but I have no comparative material and this one was collected in water. Maybe Chris could post some photos of these two species on his new website Steve |
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| ChrisR |
Posted on 29-11-2011 23:16
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
They're very tricky because of the very high magnifications needed to show the detail on the genitalia ... and you need a specimen where the genitalia are in *just* the right position for them to come out well in a photo. I will try but don't hold your breath - I can only go up to about 5x magnification and I am busy cleaning and drying my house after a minor flood ... a pipe burst in the loft PS: I think that you might be able to make it clearer by relaxing the specimen and folding the genitalia out a bit 
Edited by ChrisR on 29-11-2011 23:17 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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