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 26 (38%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2020.