Davey, P., 2009: A species confined to England, the larva overwintering once and feeding in a tunnel between the wood and bark of birch (Betulae spp.) and, less frequently, of alder (Alnus spp.). Larval frass may occasionally spill out from bark crevices or the top-edge of birch stumps during the autumn. The moth is the first Clearwing on the wing, emerging from the beginning of May onwards before 1 pm; peak emergence tends to coincide with warmer spells of weather. In Dorset, the moth is... Read More
Retained Specimen / Photograph will be Required.
Recorded in 8 (20%) of 40 10k Squares. First Recorded in 1865. Last Recorded in 2019. (Data up to end 2019) Additional Stats