Species Account

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Summary Data

Season (Adult / Immature):

National Status: Migrant

Local Status: Very common and widespread migrant.

Local Record: Grade 1   See here for explanation

Flight time: Has occurred all months, mainly Jun-Nov, peaks, Aug and Oct.

Forewing: 9-11mm.

Foodplant: Herbaceous plants.

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 recorded193319931933
Year last recorded201020102010
Number of records14612163354
Number of individuals1699427034528
Unique positions24527544
Unique locations19319424
Adult records14362133298
Immature records306

For the region, we have a total of 3354 records from 424 sites. Earliest record on file is in 1933.


1395 Udea ferrugalis 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A regular long-range immigrant that varies in numbers from year to year, the larva is polyphagous on herbaceous plants that include woundwort (Stachys spp.), mint (Mentha spp.), hemp agrimony (Eupatorium cannabinum) and currant (Ribes spp.). In Dorset, the moth has been recorded in every month of the year apart from February. In favourable years late spring immigrations spawn large indigenous broods during the late summer and autumn. These resident populations are often augmented by further waves of immigrants from the continent. Larvae have been found feeding on french honeysuckle (Hedysarum coronarium) and spear thistle (Cirsium vulgare). Three main broods are evident from the data, with a period of sixty-five days, on average, between each peak.

There is no indication that the moth can survive the UK winter, however, the following examples trapped in the first three months of the year all coincided with southerly airflows from very low latitude sources: West Bexington, on 6 January 2002 (R Eden), Portland, on 12 February 2004 and on 23 January 2008 (M Cade), Preston, on 17 March 1999 (P Knight), Gillingham, on 21 March 2002 (G Hopkins).

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