Dark Waspgrabber Leopoldius calceatus
This species was first discovered in the UK in 2018 and quickly spread. It is suspected of parasitising Ivy Bees.
This came to light. Coincidentally - or probably not - I also caught an Ivy Bee in the same trap, the first time I've had one of those come to light.
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Dark Waspgrabber Leopoldius calceatus, Wendling Beck Project (Norfolk, UK), 14th September 2026