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Diptera.info :: Identification queries :: Diptera (adults)
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Lauxaniidae > Pseudolyciella ?
Robert Heemskerk
#1 Print Post
Posted on 04-11-2009 21:12
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Location: Amsterdam, Netherlands
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hi flyforum,

This fly looks a bit like Pseudolyciella, but just a bit.,

What kind of Lauxaniidae is it?

on bark of Beech.
place: Amsterdam forest
date: 4-11-2009
Robert Heemskerk attached the following image:


[178.19Kb]
Greeting,
Robert Heemskerk
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Robert Heemskerk
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Posted on 04-11-2009 21:13
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picture 2
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Edited by Robert Heemskerk on 04-11-2009 21:13
Greeting,
Robert Heemskerk
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http://robertheemskerk.nl/plaatjevandedag.htm
Robert Heemskerk
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Posted on 04-11-2009 21:14
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picture 3
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Edited by Robert Heemskerk on 04-11-2009 21:14
Greeting,
Robert Heemskerk
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WWW: http://robertheem...ndedag.htm
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http://robertheemskerk.nl/plaatjevandedag.htm
katerina dvorakova
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Posted on 04-11-2009 22:02
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Hi Robert,
it is Pseudolyciella, where do you see the difference?
Katka
 
http://lauxhel.webgarden.cz/
Robert Heemskerk
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Posted on 05-11-2009 12:43
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Thank you Katerina for responding,

In the Netherlands there are three species of Pseudolyciella;

1. Pseudolyciella pallidiventris (Fallén, 1820)
2. Pseudolyciella stylata Papp, 1978
3. Pseudolyciella subpallidiventris Papp, 1978

These species can only identified by male genitalien.

Other species I found in the forest, where called P. cf. pallidiventris.

Do you think it's P. cf. pallidiventris?
Or is Pseudolyciella sp. much better?

greeting Robert,
Greeting,
Robert Heemskerk
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Paul Beuk
#6 Print Post
Posted on 05-11-2009 13:49
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Species have been found together. It will remain 'sp.'

Although the male genitalia of the separate species as given in their (re)descriptions are distinctive, I am under the impression that intermediates in shapes exist.
Paul

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Robert Heemskerk
#7 Print Post
Posted on 05-11-2009 14:10
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thank you for your answer Paul,

Species have been found together. It will remain 'sp.'

Pseudolyciella pallidiventris and Pseudolyciella subpallidiventris? ?

Or is it for all three species; 1. P. pallidiventris, 2. P. stylata Papp and 3. P. subpallidiventris?

(I'll ask this, trying to make a better administration on waarneming.nl of this group/species)

Greeting,
Robert Heemskerk
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Paul Beuk
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Posted on 05-11-2009 16:00
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In general: On one site more than one Pseudolyciella can occur, so there is no guarantee that once you have found one species at a certain date, that you will find the same species the next time.

Without a voucher specimen or an extremely lucky shot that shows male genitalia, all pictures will remain Pseudolyciella sp. or Pseudolyciella pallidiventris group (sp.). In the Netherlands that is the same.
Edited by Paul Beuk on 05-11-2009 16:01
Paul

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Robert Heemskerk
#9 Print Post
Posted on 05-11-2009 16:52
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Thank you Paul,

I'll not separate these species in groups then, but put them together in the:

- Pseudolyciella sp.

greeting, Robert
Greeting,
Robert Heemskerk
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Jan Willem
#10 Print Post
Posted on 05-11-2009 18:26
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Like Paul, I'm under the impression that intermediates exist. So even if you have collected the specimens and you're dealing with male specimens it's not certain you can positively identify the material.
I found several specimens in beer trap samples of the last few weeks, but only females Angry
Jan Willem van Zuijlen
 
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