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 Psychoda ?
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| Renko |
Posted on 16-02-2014 11:12
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Member Location: North of France Posts: 2389 Joined: 08.10.13 |
Hello, A Psychodidae found in North of France, the December 25 2013, near a composter Can be a Psychoda ? Greetings, Thomas Renko attached the following image:  [124.77Kb] |
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| Renko |
Posted on 16-02-2014 11:12
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Member Location: North of France Posts: 2389 Joined: 08.10.13 |
2nd photo
Renko attached the following image:  [68.84Kb] |
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| Gunnar M Kvifte |
Posted on 17-02-2014 09:12
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Member Location: Kassel, Germany Posts: 436 Joined: 18.08.09 |
Psychoda is correct. The spot of black hairs on the lower part of the wing suggests P. sigma (syn. P. surcoufi). |
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| Renko |
Posted on 18-02-2014 17:40
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Member Location: North of France Posts: 2389 Joined: 08.10.13 |
Many thanks, Gunnar M Kvifte  |
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| Paul Beuk |
Posted on 19-02-2014 11:27
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 Super Administrator Location: Netherlands Posts: 19403 Joined: 11.05.04 |
What is the source for the synonymy, please? Was that Withers (1988) who forgot to aply the priority rules?
Edited by Paul Beuk on 19-02-2014 11:46 Paul - - - - Paul Beuk on https://diptera.info |
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| Gunnar M Kvifte |
Posted on 19-02-2014 16:08
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Member Location: Kassel, Germany Posts: 436 Joined: 18.08.09 |
The first synonymy of sigma and surcoufi was by Del Rosario (1936); later followed by Withers (1988), Jezek (2003) and myself (Kvifte et al. 2011, Kvifte 2012). The synonymy remains questionable, but there is no concrete evidence in the literature to the contrary: The male of sigma from North America is yet to be figured in the dorsal view, and noone has ever examined specimens of both putative species for differences. The only arguments that have been made for keeping the two species separate are arguments from authority, which is highly unscientific and therefore unsatisfactory (e.g. Quate 1955, citing a pers.comm. from G.H. Satchell). I am inclined to believe that surcoufi will turn out to be a valid name once the species group is revised. There are two species described in the sigma complex from Europe alone, sigma was described from North America and there are further questionable synonymies from Chile and New Zealand, as well as an uncertain disjunct record from St. Helena. However, until the group has been revised I deem it the best solution to treat it as Psychoda sigma, or Psychoda sigma complex. Edited by Gunnar M Kvifte on 19-02-2014 16:17 |
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