Diptera.info :: Identification queries :: Diptera (adults)
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 [Triarthria setipennis] Tachinidae female ?
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| Christine Devillers |
Posted on 21-02-2012 21:09
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 Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Hello, Do you have an idea for this Tachinidae ? Belgium,17-06-2011 Christine Devillers attached the following image:  [146.88Kb] Edited by Christine Devillers on 23-02-2012 19:46 |
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| Christine Devillers |
Posted on 21-02-2012 21:13
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
pic 2
Christine Devillers attached the following image:  [142.06Kb] |
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| Christine Devillers |
Posted on 21-02-2012 21:15
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
pic 3
Christine Devillers attached the following image:  [143.28Kb] |
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| ChrisR |
Posted on 22-02-2012 14:01
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Looks like an Actia sp. to me - but hard to say more 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| cyprinoid |
Posted on 22-02-2012 17:24
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 Member Location: Norway Posts: 1751 Joined: 19.06.09 |
Looks like Triarthria setipennis
Hyperbolizer |
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| ChrisR |
Posted on 22-02-2012 19:33
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Possibly I wasn't sure about the parafacial bristles but you might be right. EDIT: Hmm, looks to have long aristal segments so Triarthria it is then
Edited by ChrisR on 22-02-2012 19:34 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Christine Devillers |
Posted on 23-02-2012 12:03
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Thanks, I've made a zoom on the arista. It seems that the 1st and 2nd segment are lengthened, and that the 3 segments of the thickened part are of equal lenght so I suppose there are no more doubt that it's Triarthria setipennis ? Christine Devillers attached the following image:  [98.79Kb] |
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| ChrisR |
Posted on 23-02-2012 12:42
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
I think the lower photo shows it best but it is quite hard to see clearly ... I think on balance it must be Triarthria settipennis, and I should know because I always seem to mistake them in photos for strange-looking Actia spp.  With a specimen in your hands it is one of the easiest species to identify 
Edited by ChrisR on 23-02-2012 12:43 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Jaakko |
Posted on 23-02-2012 15:00
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 Member Location: Joensuu, Finland Posts: 479 Joined: 04.08.08 |
Triarthria it is. Look at those cheecks Chris. |
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| ChrisR |
Posted on 23-02-2012 19:05
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
Yeah, if the image is rotated so that it's in a normal orientation then it is clearer ... I have an aversion to tilting my head 90-degrees to see photos
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Christine Devillers |
Posted on 23-02-2012 19:47
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Member Location: Spa, Belgium Posts: 1215 Joined: 11.11.07 |
Thanks |
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