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: 806 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: 806 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: 806 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: 7029 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, Coordinator for the UK Tachinid Recording Scheme, my Diptera blog |
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| cyprinoid |
Posted on 22-02-2012 17:24
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 Member Location: Norway Posts: 1746 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: 7029 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, Coordinator for the UK Tachinid Recording Scheme, my Diptera blog |
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| Christine Devillers |
Posted on 23-02-2012 12:03
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Member Location: Spa, Belgium Posts: 806 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: 7029 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, Coordinator for the UK Tachinid Recording Scheme, my Diptera blog |
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| Jaakko |
Posted on 23-02-2012 15:00
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 Member Location: Joensuu, Finland Posts: 474 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: 7029 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, Coordinator for the UK Tachinid Recording Scheme, my Diptera blog |
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| Christine Devillers |
Posted on 23-02-2012 19:47
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Member Location: Spa, Belgium Posts: 806 Joined: 11.11.07 |
Thanks |
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