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Sochi region, forest, on small river bank, 7mm

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Hello Nikita,
A species in the genus Xylota. The angle of the photo is not good enough for a species ID.
greetings,

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I would have guessed Chalcosyrphus sp. near nemorum.

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Hmmm, yes Kahis, I can imagine one would guess that, but I think the abdomen is longer than the members of the Chalcosyrphus nemorum group (short species whose abdominal tergites are much wider than long, and the abdomen is black with yellow markings). As you know the differences between Xylota and Chalcosyrphus are subtle and not distinguishable from a picture.
My 'gut' feeling based on experience tells me this would be in Xylota near abiens or triangularis!B)
btw Nikita, it's a female, not a male! :D
Greetings, Gerard

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Hello
That must be Chalcosyrphus nemorum. Male is only more black but it doesn't matter in determination.;)

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Hmmm, I must say I still disagree with Chalcosyrphus nemorum. There is just too much yellow on it's legs (none of my specimens have for example a yellow base on femur three, as this one does).
Furthermore it seems to have yellow markings on tergite 4, which I also never saw in C. nemorum.
I still think this is a species of Xylota, but maybe not abiens like I said before, because these also have more black on their legs.
Maybe something like the female of Xylota jakutorum but I'm not sure. Maybe a species which is restricted to the east of Europe, in which case I'm probably not familiar with it.
Greetings

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It's definitely not X. jakutorum - it is the most common Xylota here in Finland and not like that at all.

The reason why I don't think it is Xylota is the shape of the hind leg. The femora seems thickened with strong spinulae and the tibia strongly bent.