Norfolk Status
Scarce.
Characteristic sharply angled median fascia edged with dark ground colour.
Inhabits borders of ponds, lakes and slow moving streams where foodplant Reed Sweet-grass grows in standing water.
Records from the Norfolk Broads and Foulden Common (2016).
Leaf-mine: April - May. July - Aug.
Narrow mine downwards until reaching water surface, when either returns upward or changes leaf.
[MBGBI vol3 p368]  | Determination by Genitalia Examination (gen. det.) Required | |
Recorded in 5 (7%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2020. |