Narcissus Fly Merodon equestris
Also known as Narcissus Bulb Fly or Greater Bulb-fly.
This is meant to be really common so I'm not sure why it took me so long to find one. Actually I didn't even find this one - a neighbour found it and thought it looked interesting so brought it round to me in a jam jar. And I'm very glad she did.
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Narcissus Fly Merodon equestris, North Elmham (Norfolk, UK), 30th April 2025
A month later I found my own. I didn't identify it in the field or retain it, so hoped the photos would prove sufficient for an ID, which they did. The loop in vein R4+5 is just visible and the hind legs are wholly black (base colour - the tibial hairs are orangey).
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Narcissus Fly Merodon equestris, Beetley Meadows (Norfolk, UK), 30th May 2025