'Glossary' opens an
Flight period: Late July until the following May
Forewing: 4.75 to 5.5mm.
Habitat: Wooded areas and hedgerows.
Larva: Mines the leaves of Field Maple and occasionally
Sycamore. It later feeds externally in a rolled leaf lobe
or a 'cone'. A cone is formed when on Sycamore.