Season (Adult / Immature):
National Status: Nb
Local Status: Rare and local resident.
Local Record: Grade 3 See here for explanation
Flight time: One generation, May-Jun.
Foodplant: Downy Birch, Silver Birch.
|Year first recorded||1926||1900||1860||1940||1890|
|Year last recorded||2014||2006||1985||2007||1890|
|Number of records||7||11||12||12||1|
|Number of individuals||3||11||3||5||0|
For the county, we have a total of 43 records from 28 sites. First recorded in 1860.
Pheromone lures: MYO, CUL (the best).
Sutton & Beaumont, 1989: Although still only recorded from one VC63 site, this species appears to have increased its range considerably, now also having many VC63 sites. The VC65 record previously mentioned for Copley (YNU, 1970) is thought to be an error for VC63, since the only Copley traced in Yorkshire is near Halifax.
2012 (CHF):This species is meant to be attracted to pheromone lures but all records are from daytime sightings or moths bred from birch stumps. Not seen since 2007 though its distribution seems to be quite widespread.