Diptera.info :: Identification queries :: Diptera (adults)
 Phaonia bitincta or P. subventa (Many thanks Stephane)
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| cyprinoid |
Posted on 16-08-2009 17:06
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 Member Location: Norway Posts: 1751 Joined: 19.06.09 |
Norway, 31.07.09, Just shy of 10mm
cyprinoid attached the following image:  [144.69Kb] Edited by cyprinoid on 18-08-2009 10:47 Hyperbolizer |
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| javanerkelens |
Posted on 16-08-2009 17:34
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 Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
Katepisternal seems very hairy and arista not long plumose (but difficult to say with blackish background...) I also think P.subventa Joke |
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| Stephane Lebrun |
Posted on 17-08-2009 18:02
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 Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Normally, 3 p. setae on mid tibia and 2 presut. acr would indicate Phaonia bitincta, but in somes rare cases, Phaonia subventa can have 3 p. a leg, and 2 on another, like other Muscidae. We can't neither evaluate the hairiness of arista on this black background, nor the width of the presutural black vittae from this anglethough they appear narrow, it's a pity. The doubt remains...
Stephane. |
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| cyprinoid |
Posted on 17-08-2009 18:49
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Member Location: Norway Posts: 1751 Joined: 19.06.09 |
cropped & lightened
cyprinoid attached the following image:  [128.53Kb] Hyperbolizer |
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| cyprinoid |
Posted on 17-08-2009 18:50
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Member Location: Norway Posts: 1751 Joined: 19.06.09 |
almost identical to pic 1, but slightly different angle (and bigger)
cyprinoid attached the following image:  [163.66Kb] Edited by cyprinoid on 17-08-2009 18:52 Hyperbolizer |
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| Stephane Lebrun |
Posted on 17-08-2009 19:10
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Thanks, but I'm still in doubt. Arista seems not too long plumose -> P. subventa. Presutural vittae seems narrow, yellow pedicel -> P. bitincta. Stephane. |
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| cyprinoid |
Posted on 17-08-2009 19:22
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Member Location: Norway Posts: 1751 Joined: 19.06.09 |
Can I be stupid and as what is meant by a. Presutural vittae and b. yellow pedicel? I have no idea how it would help, but here is a P. subventa identified by you (I think) earlier: http://www.flickr...2/sizes/o/ Edited by cyprinoid on 17-08-2009 19:22 Hyperbolizer |
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| javanerkelens |
Posted on 17-08-2009 19:30
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Member Location: Netherlands Posts: 2962 Joined: 18.10.07 |
Because of this thread, i looked through all my P.subventa /rufiventris, and yes...there was a P.bitincta (meron haired below speracle and 3 post. tibia 2). Not found yet in the Netherlands......so thanks !!  Joke |
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| Stephane Lebrun |
Posted on 17-08-2009 19:44
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Pedicel is the scientific name for the 2nd antennal segment, and presutural vittae are the 2 median dark stripes before the thoracic suture. Theses stripes are normally at least as broad as 2/3 of the grey area separating them for P. subventa, and not more than 1/3 for P. bitincta(must be appreciated from a rear view). I cannot give a definitive and reliable ID from these pictures, sorry. The P. subventa given in link is more "conventional". Stephane. |
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| Stephane Lebrun |
Posted on 17-08-2009 19:48
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Member Location: Le Havre, France Posts: 8248 Joined: 03.03.07 |
Joke said : Because of this thread, i looked through all my P.subventa /rufiventris, and yes...there was a P.bitincta (meron haired below speracle and 3 post. tibia 2). Not found yet in the Netherlands......so thanks !! I'm happy of this, Joke ! 
Edited by Stephane Lebrun on 17-08-2009 19:48 Stephane. |
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| cyprinoid |
Posted on 17-08-2009 20:04
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Member Location: Norway Posts: 1751 Joined: 19.06.09 |
Thank you very much for taking the time Stephane, I will file this as "Phaonia bitincta or P. subventa". I'm glad this thread was good for something Joke (not just me ).
Hyperbolizer |
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