Uncommon local resident by rivers, canals and in marshes.
Glyceria maxima with larva mining leaves in April/May and July, making pale green mines which later turn reddish-brown. Pupates on an unmined leaf under a flimsy silk spinning.
Determination by Genitalia Examination (gen. det.) Required
Recorded in 16 (11%) of 140 10k Squares. First Recorded in 1950. Last Recorded in 2023. (Data up to end 2024) Additional Stats
