Diptera.info :: Identification queries :: Diptera (adults)
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 Triarthria setipennis , was :Siphona ??
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| Philippe moniotte |
Posted on 02-06-2009 20:46
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 Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
I photographed this fly in Louvain la neuve, Belgium on June 2nd 2009. Size approx like a House-fly I thought it looked a lot like Siphona geniculata, which I saw last year, but several details are wrong, I believe. Any hints ?? TIA Philippe Philippe moniotte attached the following image:  [177.22Kb] Edited by Philippe moniotte on 11-06-2009 13:09 A beautiful hypothesis can be slain by an ugly fact. |
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| ChrisR |
Posted on 02-06-2009 23:46
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 Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
Not Siphona - no angled proboscis - but it could be a Siphonini like Actia 
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 03-06-2009 20:38
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Member Location: Soest, NL Posts: 19002 Joined: 21.07.04 |
Can we please get the photo's separately ? It doesn't look like Siphonini, more like Triarthria. However, the bristles on the parafacialia seem to be lacking. In which case..... I'm not gonna write my thought. I'd love to have a better look at the arista ! Was it collected, this fly ? Theo |
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| Philippe moniotte |
Posted on 04-06-2009 07:31
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Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
Thanks Chris and Theo No, the fly was not collected, but I have several more pictures and will search them for revealing details. Philippe A beautiful hypothesis can be slain by an ugly fact. |
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| Philippe moniotte |
Posted on 04-06-2009 20:00
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Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
Here's the best I can do... Maybe you'll spot some revealing detail ;°) Philippe Philippe moniotte attached the following image:  [61.15Kb] A beautiful hypothesis can be slain by an ugly fact. |
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| Zeegers |
Posted on 04-06-2009 21:14
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Member Location: Soest, NL Posts: 19002 Joined: 21.07.04 |
Thanks SO it is Triarthria setipennis after all, with an unusual (but not impossible) orange antenna. Theo |
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| Philippe moniotte |
Posted on 11-06-2009 13:09
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Member Location: Heron, Belgium Posts: 865 Joined: 14.10.05 |
Thanks a lot Theo. Philippe A beautiful hypothesis can be slain by an ugly fact. |
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