Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinid identification/confirmation
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| philporter |
Posted on 30-09-2010 09:55
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Arista bare, eye obviously hairy. No parafacial bristles. Facial ridge without bristles above apex of 3rd antennal segment. Palps yellowish at least in apical half. 2 sternopleural bristles. All dorsal surfaces with patterns of grey/silver and dark. 4 scutellar marginals including crossed apicals much smaller than others. All tergites with marginal bristles. Legs entirely black. 22/8/2010 Whisby Nature Park, Lincoln SK923669 Nemorilla florealis? Images courtesy of blowave philporter attached the following image:  [72.87Kb] |
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| philporter |
Posted on 30-09-2010 09:58
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
#2
philporter attached the following image:  [75.55Kb] |
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| ChrisR |
Posted on 30-09-2010 10:23
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Yes - looks OK to me - just double-check the humeral-callus ... it looks like the 3 largest bristles are arranged in a forward-pointing triangle but the viewing angle here isn't very good.  Strange, but I never seem to find Nemorilla around here ... maybe I give up collecting too early in the season. What habitat did you find this one on - was it nectaring? What on?
Edited by ChrisR on 30-09-2010 10:24 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| philporter |
Posted on 30-09-2010 14:03
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Thanks very much Chris. I have attched the best image I can come up with at short notice but I don't know if it will better than the second above. Can't help you with the background to flies I have at the moment, we have concentrated on catching a large number of vouchers hopefully to be named with a view to far more considered collecting next year when we may be able to identify better ourselves. But thanks for the reminder as to the desirability of habitat information.
philporter attached the following image:  [51.79Kb] |
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| ChrisR |
Posted on 30-09-2010 14:47
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
That's OK - it shows the arrangement perfectly - looks like Nemorilla floralis 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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| philporter |
Posted on 30-09-2010 16:06
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
OK Chris. Thanks again. Could you tell me, concerning the various couplets in Belshaw refering to dorsal surfaces being 'entirely reflective black or with grey markings visible to the naked eye', whether there are cases of ambiguity there or can it be taken entirely at face value? Immediately after a session of microscopy, my 'naked-eye sight' is sometimes a bit compromised so the temptation is to carry on with the microscope. The way the couplet is phrased I assume that specimens with microscopically obvious grey markings may require to be treated as 'entirely black'? Or not? |
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| ChrisR |
Posted on 30-09-2010 16:10
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
It's usually pretty obvious but the 'visible to the naked eye' part just allows for some glossy species that might have tiny patches of dusting in the corners of the tergites. Most species go through those couplets as 'dusted'
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 17:24
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Member Location: Soest, NL Posts: 18534 Joined: 21.07.04 |
It is, indeed, Nemorilla floralis THeo |
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| philporter |
Posted on 03-10-2010 09:15
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Thanks to Theo and Chris. |
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but don't see the image in the post.