Season (Adult / Immature):
National Status: Local
Local Status: Rare and very local resident.
Local Record: Grade 3 See here for explanation
Flight time: Two generations, May-Jul, Jul-Sep.
Foodplant: Pedunculate Oak. Sessile Oak and Turkey Oak.
|Year first recorded||1905||2007||1970||1905|
|Year last recorded||2011||2007||2011||2011|
|Number of records||1369||2||211||3164|
|Number of individuals||2747||6||310||6126|
For the region, we have a total of 3164 records from 344 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 oak (Quercus spp.). In Dorset, the moth is locally common, being found most often in old oak woods. The peak of the second brood is, on average, nearly three times larger than that of the first brood. There is a high incidence of colour variation within the second brood, with a tendency for the terminal area of the forewing to be suffused with grey; this may be related to the higher temperatures experienced by the insect during its development. The following light trap records were presumed to have been dispersed individuals from oak woodland or possibly immigrants from abroad: West Bexington, on 12 August 2003, 4 August 2004, 9 August 2004 (R Eden), Wyke Regis, on 17 August 2003 (D Foot), Portland, on 24 August 2001 (M Cade).