Diptera.info :: Identification queries :: Diptera (adults)
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 Small Dolichopodidae, Germany
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| Pristurus |
Posted on 20-12-2013 15:52
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 Member Location: Marburg/Germany Posts: 853 Joined: 07.07.10 |
found on 2013-09-04 in a swampy area in a forest near Marburg. Regards, Ingo https://commons.w...09-04.webm Pristurus attached the following image:  [83.19Kb] My diptera videos: http://commons.wikimedia.org/wiki/User %3APristurus/gallery/Diptera |
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| Pristurus |
Posted on 03-01-2014 00:29
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Member Location: Marburg/Germany Posts: 853 Joined: 07.07.10 |
Campsicnemus?
My diptera videos: http://commons.wikimedia.org/wiki/User %3APristurus/gallery/Diptera |
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| Stefan Naglis |
Posted on 03-01-2014 11:29
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Member Location: Switzerland Posts: 738 Joined: 27.12.08 |
I cannot see dorsal setae on the hind basitarsus, so I say Hercostomus or Gymnopternus. |
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| Pristurus |
Posted on 04-01-2014 15:42
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Member Location: Marburg/Germany Posts: 853 Joined: 07.07.10 |
Thank you Stefan. Is there a possibility to differentiate between these genera in the field? Regards, Ingo My diptera videos: http://commons.wikimedia.org/wiki/User %3APristurus/gallery/Diptera |
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| John Carr |
Posted on 04-01-2014 15:51
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 Member Location: Massachusetts, USA Posts: 9879 Joined: 22.10.10 |
It is more likely Hercostomus than Gymnopternus because M and R4+5 are convergent. |
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| Pristurus |
Posted on 04-01-2014 16:08
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Member Location: Marburg/Germany Posts: 853 Joined: 07.07.10 |
John, thank you for your comment. Greetings. Ingo
My diptera videos: http://commons.wikimedia.org/wiki/User %3APristurus/gallery/Diptera |
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| Stefan Naglis |
Posted on 04-01-2014 18:52
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Member Location: Switzerland Posts: 738 Joined: 27.12.08 |
Dear Ingo, the best method is to collect specimens and to make photos. e.g. from the male genitalia. |
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| Pristurus |
Posted on 05-01-2014 10:59
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Member Location: Marburg/Germany Posts: 853 Joined: 07.07.10 |
Well, the species was not very seldom at this place and I will try to collect a few of them in the next summer. Thanks and regards, Ingo
My diptera videos: http://commons.wikimedia.org/wiki/User %3APristurus/gallery/Diptera |
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| Marc Pollet |
Posted on 06-01-2014 23:44
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Member Location: Welle (Denderleeuw) Posts: 161 Joined: 02.06.05 |
Well, dear fellows, to me this looks like Sybistroma obscurellum (female) on the basis of the wing venation and the rather pale legs, and certainly also considering the habitat (swampy forest) and the late date (Gymnopternus are mainly springtime species, with only small 2nd generations in some species), but as Stefan mentions: it's very difficult to ID the specimen without a specimen at hand. So this would be my best guess. Cheers, Marc |
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but don't see the image in the post.
