Season (Adult / Immature):
National Status: Common
Local Status: Scarce and local resident. Under-recorded - treated as agg.
Local Record: Grade G See here for explanation
Flight time: One generation, Oct-Nov.
Foodplant: Birch and Alder.
|Year first recorded||1956||1985||1956|
|Year last recorded||2011||2011||2011|
|Number of records||90||70||320|
|Number of individuals||573||229||1604|
For the region, we have a total of 320 records from 76 sites. Earliest record on file is in 1956.
Similar species: 1798 Small Autumnal Moth.
For further information refer UK Moths.
Davey, P., 2009: Widespread in Britain, the larva feeding on birch (Betula spp.) and alder (Alnus spp.). The shape of the post-median fascia on the forewing forms a right angle where it curves around the discal spot. In Dorset, the moth is likely to be most common in deciduous woodland on wetland and heathland sites.