Season (Adult / Immature):
National Status: Common
Local Status: Uncommon and fairly widespread resident.
Local Record: Grade 1 See here for explanation
Flight time: One generation, Jun-Aug.
Foodplant: Downy Birch, Silver Birch, Hazel, Alder, (Beech).
|Year first recorded||1905||1983||1905|
|Year last recorded||2011||2011||2011|
|Number of records||705||69||1548|
|Number of individuals||1086||103||2378|
For the region, we have a total of 1548 records from 300 sites. Earliest record on file is in 1905.
For further information refer UK Moths.
Davey, P., 2009: A generally distributed species in Britain, the larva feeding on birch (Betula spp.), and less frequently on beech (Fagus sylvatica), hazel (Corylus spp.) and alder (Alnus spp). This is the largest of the Emeralds, with a wingspan of up to 65mm. In Dorset, the moth is most frequent where birch grows in deciduous woods on sandy and clay soils and on heaths. Favoured sites include Arne Wood, Hurn, Whitesheet, Boys Wood and Castle Wood. Elsewhere it is scarce.