Tephritis neesii
The wing pattern is unique to this species, although some other species come fairly close so care us needed with the identification. The larvae apparently feed on Ox-eye Daisy (Leucanthemum).
This one came to light in a meadow with lots of Ox-eye Daisies.
Tephritis neesii, Wendling Beck Environment Project (Norfolk, UK), 14th July 2024
These two came to light in the same meadow.
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Tephritis neesii, Wendling Beck Environment Project (Norfolk, UK), 16th July 2024
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second Tephritis neesii, Wendling Beck Environment Project (Norfolk, UK), 16th July 2024