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 Xanthogramma pedissequum?
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| Michael Stemmer |
Posted on 23-12-2025 01:50
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 Member Location: D-53572 Unkel, Germany Posts: 539 Joined: 06.08.06 |
Hello everyone, is my determination correct? Location: Germany, Rhineland-Palatinum, 53572 Unkel, river Rhine valley, Stux hill, dry and warm habitat (grapeyards), nearby deciduous forest (oak, Fagus ...), April 21st, 2025 Thanks in advance, Michael Michael Stemmer attached the following image:  [163.36Kb] |
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| eklans |
Posted on 23-12-2025 09:46
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Member Location: Franconia, Germany Posts: 4387 Joined: 11.11.18 |
X. stackelbergi, I think: more yellow spots on sides of thorax. Bot, van de Meutter (2023): Hoverflies of Britain and NW-Europe Greetings, Eric |
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| Michael Stemmer |
Posted on 23-12-2025 22:49
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Member Location: D-53572 Unkel, Germany Posts: 539 Joined: 06.08.06 |
Hello Eric, now I have the book Bot / de Meutter, and I have overlooked the page 179 with the species X. pedissequum, stackelbergi and dives. I have a second (and last) photo. I think, the median stripe of the head is connected with vertex: X. pedissequum or dives, but not stackelbergi. And the side of the thorax has more than two yellow spots, as you had mentioned: X. stackelbergi or dives, not pedissequum. And I think (hard to see), the wingtips are darkened; that speaks in favor of X. dives as well. So I think, X. dives is the most probable species. But I am not an expert. What do you (and others) think? Thanks for your answer, Michael Michael Stemmer attached the following image:  [148.2Kb] |
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