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View Thread :: Identification queries :: Diptera (adults)
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Limnophila arnoudi -> pictipennis
#1 Print Post
Posted on 01-06-2013 22:18
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Location: Berlin and Baden-W├╝rttemberg, Germany
Posts: 3799
Joined: 28.07.07

On 10th May I saw many of these beautiful Limoniids on a pond edge in southern Brandenburg. I would name them Limnophila arnoudi, referring to this thread: There is no supernumerary crossvein in cell dm, so not Eloeophila, and the femora have a black apical ring, so not Limnophila schranki. Would you agree?
Thanks for comments, Sundew
Sundew attached the following image:

Edited by Sundew on 24-06-2013 22:51
#2 Print Post
Posted on 24-06-2013 20:31
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Location: Yerseke, NL
Posts: 2246
Joined: 13.02.09

This is a male Limnophila pictipennis.
Best wishes, Niels-Jan Dek
#3 Print Post
Posted on 24-06-2013 21:57
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Location: Berlin and Baden-W├╝rttemberg, Germany
Posts: 3799
Joined: 28.07.07

Dear Niels-Jan, you make me very curious: how did you know? I would like to learn the discriminating characters between L. arnoudi and L. pictipennis, too! In the thread cited above the only statement for L. pictipennis is: "genitalia with a broader style, wings generally broader". Where do I see a "style" in the genitalia photo? I learnt that there are dististyli (http://www.dipter...d_id=21796). Wing shape can be estimated only by comparison, and the pattern of the dark spots is said to be quite variable. So I wonder what character you based yor ID on!
Thanks for explanation, Sundew
Edited by Sundew on 25-06-2013 22:33
#4 Print Post
Posted on 25-06-2013 18:09
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Location: Yerseke, NL
Posts: 2246
Joined: 13.02.09

L. pictipennis is easily distinguished from L. schranki and L. arnoudi by the black apical ring on the femora, in the other species a big part of the femora is black and they have a more greyish rather than brown appearance. Wing pattern is also different.
L. arnoudi and L. schranki are more difficult to distinguish, only by male genitalia. In L. arnoudi tergite 9 doesn't have a V-shaped notch and the inner style is a little different. With 'style' the same is meant as dististylus.
Best wishes, Niels-Jan Dek
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27 September 2022 02:36


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