Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Probably abundant, but unknown due vast majority undetermined.

Local Record: Grade G   See here for explanation

Flight time: One generation, Jul-Aug

Forewing: 12-16mm.

Foodplant: Grasses.

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 recorded195519821955
Year last recorded201120112011
Number of records481724410122
Number of individuals508063257108126
Unique positions29030640
Unique locations21927492
Adult records45802439646
Immature records000

For the region, we have a total of 10122 records from 492 sites. Earliest record on file is in 1955.


2343 Common Rustic 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: An abundant species over much of Britain, the larva feeding on the inner parts of various grass species including cock's-foot (Dactylis glomerata), tall fescue (Festuca arundinacea), tufted hair-grass (Deschampsia cespitosa) and cereal crops. In Dorset, this highly variable moth is common to abundant everywhere and seems to have no ecological preference. The national norm is a single brood in July and August. In Dorset moths have been seen as early as the end of May and as late as the middle of October, suggesting an occasional bivoltine cycle. There are three 'Common Rustics', this one, the Lesser Common Rustic2343.1, and the Remm's Rustic2343.2. There is some debate over whether the latter species is indeed a distinct species or just a hybrid of the other two. All three can only be separated with certainty via dissection.

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