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View Thread :: Identification queries :: Diptera (adults)
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Drosophila (1) - D. immigrans confirmed
#1 Print Post
Posted on 15-11-2023 06:08
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Location: Berlin and Baden-Württemberg, Germany
Posts: 3890
Joined: 28.07.07

Please let me show you a series of yellow Drosophila species. I hope we can put them in a group at least.
This female is from southern Brandenburg, photographed on 30th September. It was laying eggs in a stack of firewood. As only the posterior crossvein is clouded and the anterior isn't, and the shape of the dark tergite markings is different, I rule out D. kuntzei. What about D. immigrans?
Opinions are appreciated!
Thanks, Sundew
Sundew attached the following image:

Edited by Sundew on 15-11-2023 19:05
#2 Print Post
Posted on 15-11-2023 06:09
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Location: Berlin and Baden-Württemberg, Germany
Posts: 3890
Joined: 28.07.07

More pics. There MIGHT be the characteristic row of about 8-11 short sharp spines on the apical half of the anteroventral surface of the front femur (marked in green).
Sundew attached the following image:

Jan Maca
#3 Print Post
Posted on 15-11-2023 09:02

Posts: 1114
Joined: 25.03.10

Yes, D. immigrans female. The dark denticles on the fore femur are well visible, although not exactly where the arrow points.
#4 Print Post
Posted on 15-11-2023 14:30
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Location: Berlin and Baden-Württemberg, Germany
Posts: 3890
Joined: 28.07.07

The arrow just points to the green line Grin (that is marking the denticle row). So I got the right species - wow! Thanks!
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27 February 2024 05:38


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17.08.23 13:54
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Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

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pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

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Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

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