Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Scarce and thinly distributed or restricted resident.

Local Record: Grade 2   See here for explanation

Flight time: One generation, May-Jun.

Forewing: 8-10mm.

Foodplant: Common Mouse-ear and Field Mouse-ear.

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 recorded188620051886
Year last recorded201020052010
Number of records39180
Number of individuals2852574
Unique positions29160
Unique locations27156
Adult records37176
Immature records102

For the region, we have a total of 80 records from 56 sites. Earliest record on file is in 1886.


2397 Small Yellow Underwing 01
© Dave Foot

Species Account

For further information refer UK Moths.

Davey, P., 2009: A local species in England and Wales, the larva feeding on common mouse-ear (Cerastium fontanum) and field mouse-ear (Cerastium arvense). In Dorset, this handsome day-flying species is widespread but local and usually at low density but potentially under-recorded due to its small size and to its similarity, at least on the wing, to day-flying Pyrausta micromoth species. It tends to occur in unimproved grassland, on verges and in gardens on all soil types, where common mouse-ear is abundant. A strong colony of the moth has taken up residence at a site in the process of being reverted from improved to unimproved chalk grassland by the National Trust on the Kingston Lacy estate: Shapwick, roughly one hundred present in sunshine on 12 May 2002 (P Davey), fifty in sunshine on 14 May 2003 (P Davey, C Manley). An alternative foodplant for the species, field mouse-ear, was once widespread in short turf on chalky soils and on heathland tracks. However, the plant has declined significantly, for example it has disappeared from Parley Common, a locality once colonised by the moth, and remains only on ancient earthworks in the far north-east of the county.

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