Season (Adult / Immature):
National Status: Common
Local Status: Common and widespread resident.
Local Record: Grade 2 See here for explanation
Flight time: Jun-Sep.
|Year first recorded||1935||1993||1935|
|Year last recorded||2010||2010||2010|
|Number of records||501||153||1308|
|Number of individuals||1461||429||3780|
For the region, we have a total of 1308 records from 402 sites. Earliest record on file is in 1935.
For further information refer UK Moths.
Davey, P., 2009: A widespread species in England, Wales and southern Scotland, the larva feeding on mosses (Musci spp.) and lichens (Lichenes spp.) growing on tree trunks, rocks and walls. In Dorset, the moth is widespread and locally common, with no discernible ecological preference. The form portlandica, where the basal area on the forewing is whitish, occurs infrequently along the Dorset coast.
The national norm is for a single brood in June and July, but in Dorset, the moth is also on the wing in August and into early September. Given the lack of sufficient nutrient in mosses and even less in lichens to sustain two summer generations, the moth is probably single brooded, comprising a small emergence initially followed by the main emergence.