Notes: A bivoltine species, with occupied mines common on beech from June until the end of October.
Link to leafmines.co.uk
UK distribution: Common throughout England and Wales, extending to the Scottish Highlands where it is scarce. In Ireland it is widespread in the west and is likely to be found throughout the country.

Flightime guide
J	F	M	A	M	J	J	A	S	O	N	D