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 Sarcophagid Ravinia pernix? > Sarcophaga cf. caerulescens
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| blowave |
Posted on 08-10-2010 15:58
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 Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hi, A big one, around 12mm I think. 2nd October on Ivy, my garden near Lincoln UK. 3 pics + 1 crop Janet 
blowave attached the following image:  [99.54Kb] Edited by blowave on 27-12-2010 20:45 http://cubits.org... |
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| blowave |
Posted on 08-10-2010 15:59
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 2
blowave attached the following image:  [138.97Kb] http://cubits.org... |
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| blowave |
Posted on 08-10-2010 15:59
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
pic 3
blowave attached the following image:  [103.84Kb] http://cubits.org... |
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| blowave |
Posted on 08-10-2010 15:59
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
crop
blowave attached the following image:  [90.58Kb] http://cubits.org... |
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| ChrisR |
Posted on 08-10-2010 17:24
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Looks like a female sarcophagid to me The eyes look too red and bare to be a Linnaemya
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| blowave |
Posted on 08-10-2010 19:03
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Thansk Chris, it was a little confusing because of that bristly face. Could this be Brachicoma devia? I can't see the long arista on mine, but it does have strong facial bristles! http://diptera.in...ost_142485 I'll change the title. http://cubits.org... |
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| ChrisR |
Posted on 08-10-2010 22:24
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Could be But best to wait for someone who really knows their sarcos 
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 09-10-2010 09:42
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Member Location: Soest, NL Posts: 18723 Joined: 21.07.04 |
Doesn't 'feel' like Brachycoma (which has a very distinct yet hard to describe colouration of the abdomen). Moreover, the arista 'seems' to be plumose. I'm thinking female Ravinia striata ? Theo |
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| blowave |
Posted on 09-10-2010 14:27
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Thanks for the suggestion Theo, you could well be right! Ravinia striata, or Ravinia pernix as it now seems to be named, is the only Ravinia species we have, or maybe anyone has? The arista certainly are not bold on that species, I would think they are plumose on mine. I found some very good photos of it, showing the face and the bristles look to match up. It also has the frill of pale hairs/bristles behind the head. http://www.fugleo...p;ID=13793 http://cubits.org... |
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| Zeegers |
Posted on 09-10-2010 14:59
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Member Location: Soest, NL Posts: 18723 Joined: 21.07.04 |
Yes, striata and pernix keep changing names, I lost track.... Theo |
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| Thomas Pape |
Posted on 27-12-2010 20:33
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Member Location: Natural History Museum of Denmark Posts: 110 Joined: 29.08.05 |
I am not sure this is Ravinia pernix, and I am basing this partly on the colour, which is too bluish-black as compared to the more greyish colour of R. pernix, and partly on the rows of frontal bristles, which I interpret as diverging abruptly anteriorly [difficult to see, though]. I would think this is a female Sarcophaga sp., and if very hardly pressed for a species name I would put my bets on Sarcophaga caerulescens, which is the species of British Sarcophagas, that in general is most dark and has that bluish 'whif' that also has given rise to its name. |
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| blowave |
Posted on 27-12-2010 20:47
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Thank you Thomas!
http://cubits.org... |
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