The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Listed by Ball (1986) as pRDB1, with few records from Gloucestershire, Cornwall, Devon and Herefordshire until the early 21st century, when both the number of records and its distribution increased (Heckford pers. comm.). Recorded from places throughout central Europe. Previous confusion with some forms of Acleris hastiana have cast doubt on some of the older records.
First recorded in Cornwall in a garden at Saltash (to light in 1971), but not recorded in Devon until 1992. In January 2006 one came to light at Downderry and four larvae were found at Seaton in August the same year (Heckford pers. comm.). In 2007 larvae were found at Rame Head and in 2008 further singles came to light at Downderry and at Torpoint.
Habitat & Ecology
According to Bradley, Tremewan & Smith (1973) a polyphagous species of deciduous woodland, but recently found on Blackthorn Prunus spinosa on coastal cliffs. The adult flies at night and during the day rests high in the foliage where it is rarely seen. Probably bivoltine, at least in Devon.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.