Season (Adult / Immature):
National Status: Local
Local Status: Rare and very local resident.
Local Record: Grade 3 See here for explanation
Flight time: One generation. Aug-Oct (Apr-May after hibernation)
Foodplant: Buckthorn, Alder Buckthorn.
|Year first recorded||1806||1968||1883||1883||1883|
|Year last recorded||2007||2014||2013||2014||2015|
|Number of records||7||3||29||94||7|
|Number of individuals||3||2||10||5107||3|
For the county, we have a total of 140 records from 77 sites. First recorded in 1806.
Sutton & Beaumont, 1989: There are one or two recent records from each vice-county except VC62.
2012 (CHF): There are occasional records in buckthorn-rich areas of south VC63, but our biggest populations are in the limestone Dales where large numbers (over 200 in a good year) can be found hibernating in caves. Buckthorn is present in these areas but is not common and it is not impossible that another food source is being utilised. Larvae have not yet been found in this area.