Season (Adult / Immature):
National Status: Local
Local Status: Uncommon and thinly distributed resident.
Local Record: Grade 2 See here for explanation
Flight time: One generation, May-Aug.
|Year first recorded||1970||1992||1970|
|Year last recorded||2011||2011||2011|
|Number of records||114||89||406|
|Number of individuals||139||153||584|
For the region, we have a total of 406 records from 134 sites. Earliest record on file is in 1970.
For further information refer UK Moths.
Davey, P., 2009: A species found locally in England and Wales, the larva feeding on alder (Alnus spp.). In Dorset, the moth is common in valley swamps where alder is dominant, for example at Powerstock Common and St Leonards Peats, and along rivers valleys such as the Moors River. The national norm is a single brood in June and early July. In Dorset, an additional double brood cycle is evident with peaks in May and August. The moth is very rarely encountered far from its core habitat, but records from inland and coastal localities some distance from wetland hint at a tendency to disperse over medium distances occasionally.