Diptera.info :: Identification queries :: Other insects, spiders, etc.
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 Tenthredo scrophulariae
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| AdrianBothe |
Posted on 03-07-2019 11:40
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Member Location: Berlin Posts: 236 Joined: 19.06.18 |
Dear all, on 25th of May this year I found this Hymenoptera near a small channel in the north of Berlin ( Germany ). Could one of you experts tell me which species it belongs to? Thanks in advance. Best regards, Adrian AdrianBothe attached the following image:  [260.03Kb] Edited by AdrianBothe on 21-02-2022 19:57 |
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| Tony Irwin |
Posted on 03-07-2019 13:19
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 Member Location: Norwich, England Posts: 7226 Joined: 19.11.04 |
Tenthredo scrophulariae, the Figwort sawfly
Tony ---------- Tony Irwin |
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| AdrianBothe |
Posted on 03-07-2019 20:01
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Member Location: Berlin Posts: 236 Joined: 19.06.18 |
Thanks Tony, looks similar! Yet, on the pictures that I find online the yellow pattern on the abdomen forms a series of continuous rings. On my photo clearly the third one of the markings is only a lateral spot and not a whole ring.. Could it be another species? |
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| Tony Irwin |
Posted on 03-07-2019 21:47
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Member Location: Norwich, England Posts: 7226 Joined: 19.11.04 |
My understanding is that the yellow bands on the abdomen of this species are quite variable - they can be quite thick, or quite thin, so perhaps they can sometimes be broken in the middle as well (though I have yet to find a picture of one like yours). It does look as though it's sitting on a figwort leaf - not an entirely reliable character, but does support it being scrophulariae
Tony ---------- Tony Irwin |
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| Tony Irwin |
Posted on 03-07-2019 21:52
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Member Location: Norwich, England Posts: 7226 Joined: 19.11.04 |
Looking more closely at your picture, I'm wondering whether this is a teratological specimen. The segment which has the spot appears to narrow off strongly to the right. Perhaps it had a developmental problem, leading to the odd pattern.
Tony ---------- Tony Irwin |
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| AdrianBothe |
Posted on 04-07-2019 21:11
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Member Location: Berlin Posts: 236 Joined: 19.06.18 |
Dear Tony, thanks for your interesting thoughts on the specimen - I think you might be right and it is a variation. Here I have another picture, does that specimen belong also to this species?
AdrianBothe attached the following image:  [213.68Kb] Edited by AdrianBothe on 21-02-2022 19:58 |
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