Norfolk status Damp meadows, fens, marshes, sea-cliffs and woodland rides where foodplant found. The two main food plants produce slight differences in the larval habits and flight times of the adults. Leaf-mine: August to September, then May to June when on Ploughman’s Spikenard. July to August, then April to May when on Hemp-agrimony.
Determination by Genitalia Examination (gen. det.) Required
Case: A good quality photo or specimen of the case and plant/pabulum is required.
Recorded in 24 (35%) of 69 10k Squares. First Recorded in 1874. Last Recorded in 2018. Additional Stats