Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and thinly distributerd resident.

Local Record: Grade 2   See here for explanation

Flight time: One generation, May-Aug.

Forewing: 16-21mm.

Foodplant: Downy and Silver Birch, 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 recorded190519831905
Year last recorded201120112011
Number of records522841212
Number of individuals6791561670
Unique positions15620352
Unique locations12318282
Adult records486811134
Immature records000

For the region, we have a total of 1212 records from 282 sites. Earliest record on file is in 1905.


2280 Miller 02
© Julian Francis
2280 Miller 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A widespread species in England and Wales, more local in Scotland, the larva feeding on birch (Betula spp.) and alder (Alnus glutinosa), and occasionally other deciduous trees. In Dorset, the moth is frequent on birch-rich heathland on sandy soils, in woodland containing mature birch or alder on any soil, and among alder-rich fen, swamp and river valleys. The few individuals trapped away from birch and alder suggests dispersal. A single old record of larvae found on western balsam-poplar (Populus trichocarpa) demonstrates that the species may sometimes occupy alternative habitats. Although the moth is single brooded in the UK during late May and June, two brood cycles, similar to that of Poplar Grey2278, is suspected.

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