The larvae of the fly Phytomyza angelicastri mine the leaves of Wild Angelica and Ground Elder producing an upper surface mine, which can widen and form a blotch.
Wherever the larval foodplants occur.
The larval mines can usually be seen in summer and early autumn.
Fairly common and widespread
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015