Local in gardens throughout much of Greater London and southern England, with records north to Lancashire. An adventive species, naturalised through accidental introduction in conifers from mainland Europe, now fully naturalised. In Hampshire first recorded in the county in 1998 in the north-east, from where it now appears to be spreading. Not recorded from the Isle of Wight to date. Wingspan 8-9 mm. Larva mines leaves and shoots of Juniper, Leyland Cypress, Lawson's Cypress, and other cultivated conifers.