Hi - Can anyone help me pin down this ichneumon-like syrphid - the nearest thing I have found is Chalcosyrphus but that seems unrecorded from here.
It was collected in Kelso, Scottish Borders 21st June, 2025.
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Sphegina is a genus that…
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Sphegina is a genus that looks like it's intermediate between Baccha and Neoascia. But separation of the species is not easy.