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This is a female, with eyes separated on the top of the head. Females usually have the terminal segments of the abdomen tucked away, but sometimes they are extended and give the abdomen a very pointed appearance.
I saw one on Sallow blossom, today, too, together with lots of Melangyna lasiophthalma. These early Episyrphus may have overwintered, which is unusual in Hoverflies.
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Lat/Lng: 51.3, -0.1
OS grid ref: TQ3468