Species Account

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Summary Data

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.

Forewing: 9-12mm.

Foodplant: Alder.

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded197019921970
Year last recorded201120112011
Number of records11489406
Number of individuals139153584
Unique positions717156
Unique locations616134
Adult records11089398
Immature records000

For the region, we have a total of 406 records from 134 sites. Earliest record on file is in 1970.


1874 Dingy Shell 01
© Tom Morris

Species Account

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.

See background to species accounts.  Index of Vernacular names - Search - Random Species