Wingspan 7 to 9 mm. Similar to other members of the family. The wings are brown with white markings edged in black.
Leafmine occurs on Birch. http://www.leafmines.co.uk/html/Lepidoptera/P.ulmifoliella.htm
This species can be found almost anywhere where the foodplant, Birch (Betula) is present.
There are two generations with adults flying in May and again in August.
As a larva, the species forms a blotch mine on the underside of a Birch leaf, often quite small, but puckering the leaf noticeably. The larvae are present in July, and more commonly in September and October.
Widespread and fairly common throughout the British Isles. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.
It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).
Leicestershire & Rutland Map
Enter a town or village to see local records
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015