Morley’s Final Catalogue: Not listed.
Recent Status: Found in established Suffolk reed-beds.
Life Style: A single brooded species that comes to light. It has a long flight period and can occur from May to October. The larvae mine leaves of Phragmites where they hibernate and pupate.
Identification: Distinctive amongst the British Cosmopterix species. The larvae remain visible within the mine unlike C. scribaiella and the mine is not long and narrow as for C. orichalcea More Info
Recorded in 7 (12%) of 58 10k Squares.
First Recorded in 1965.
Last Recorded in 2020.