Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Rare migrant/wanderer.

Local Record: Grade 3   See here for explanation

Flight time: One generation, Jun-Jul.

Forewing: 17-21mm.

Foodplant: Unknown.

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 recorded18901890
Year last recorded20072007
Number of records1326
Number of individuals58116
Unique positions714
Unique locations714
Adult records1326
Immature records00

For the region, we have a total of 26 records from 14 sites. Earliest record on file is in 1890.


sorry, no pictures available for this species yet

Species Account

For further information refer UK Moths.

Davey, P., 2009: A local species on calcareous soils with a discontinuous distribution, resident in central southern England, north-west England and north Wales, in the Scottish Highlands and in the Hebrides and Orkney, the larva foodplant is unknown.

In Dorset, the moth is likely to have the status of immigrant and transitory or aestivating resident, although the most recent record is from 1992. "A consideration of these records leaves the impression on me of an immigrant that occasionally succeeds in getting a brood through, but has no real foothold." (W Parkinson Curtis manuscript). The moth has most often been seen on Portland: "On valerian growing on tips from the first quarry south of Church Ope Cove; moths restricted to valerian growing among huge boulders 5'-6' across. The moth emerges in early July, hides amongst rocks and crawls up to valerian at late dusk; if disturbed it falls to the ground showing no signs of flying. After aestivation, it appears in September and then flies." (R Demuth).

The species occurs across central Europe, as does a second and very similar species, Rhyacia lucipeta. This latter species is also known to migrate and although there are no British records to date, care should be taken when identifying any Dotted Rustics encountered.

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