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 Gymnocheta viridis? Yes
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| Morten A Mjelde |
Posted on 15-11-2021 20:50
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Member Location: Posts: 6188 Joined: 29.11.15 |
Gymnocheta viridis or the other one? Coastal area, Vestfold, Norway 31May.
Edited by Morten A Mjelde on 17-11-2021 19:16 |
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| Morten A Mjelde |
Posted on 15-11-2021 20:52
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Member Location: Posts: 6188 Joined: 29.11.15 |
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| eklans |
Posted on 15-11-2021 22:12
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Member Location: Posts: 3337 Joined: 11.11.18 |
Hi Morton, Gymnocheta is correct (Chrysosomopsis auratus appears later and has only 3 post dc).
Greetings, Eric Kloeckner |
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| Morten A Mjelde |
Posted on 16-11-2021 11:56
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Member Location: Posts: 6188 Joined: 29.11.15 |
Thank you. I actually meant Gymnocheta magna, but presumably the pictures are not good enough for a safe determination.  Morten |
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| eklans |
Posted on 16-11-2021 12:53
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Member Location: Posts: 3337 Joined: 11.11.18 |
Hi Morten, it should be magna indeed: the green stripe on parafrontalia and the green femora are perfectly visible! And compared to my viridis the mouthedge seems to be distinctly protruding. This one seems to be very rare (and not in Norway according to fauna-eu). EDIT: The mouthedge is not as prominent as it should: https://diptera.i...to_id=5809 Probably a female viridis... Edited by eklans on 16-11-2021 13:54 Greetings, Eric Kloeckner |
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| Morten A Mjelde |
Posted on 16-11-2021 21:44
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Member Location: Posts: 6188 Joined: 29.11.15 |
Hi Eric Thank you very much! Yes it is most likely viridis. I think that magna has been found in Norway. It's on Haraldeide's checklist. Morten |
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| Zeegers |
Posted on 17-11-2021 08:55
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Member Location: Posts: 18446 Joined: 21.07.04 |
The metallic green colour on femora is a very tricky feature, since it depends on the angle of view. Which cannot be varied on a picture There is, however, a very nice alternative for females: hairs on tergites 3&4 are erect in viridis, adpressed in magna. Hence viridis. Theo |
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| Morten A Mjelde |
Posted on 17-11-2021 19:15
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Member Location: Posts: 6188 Joined: 29.11.15 |
Thank you, Theo! Morten |
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but don't see the image in the post.