Species Account

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Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Common and widespread resident.

Local Record: Grade 1   See here for explanation

Flight time: Two generations, May-Jul, Aug-Sep.

Forewing: 13-15mm.

Foodplant: Bedstraws.

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 recorded1955200719821955
Year last recorded2011200720082011
Number of records11391342348
Number of individuals14211442932
Unique positions20217420
Unique locations15616326
Adult records9701342010
Immature records0000

For the region, we have a total of 2348 records from 326 sites. Earliest record on file is in 1955.


1752 Purple Bar 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A widespread species in Britain, the larva feeding on hedge bedstraw (Galium mollugo) and other species of bedstraw (Galium spp.). In Dorset, the moth is found in almost every habitat. It ranges from infrequent on sandy soil, to frequent on unimproved grassland on chalky soil inland and along the coastal belt. The flight time covers five months, and two brood cycles are suspected with a period of eighty days, on average, between the first and second peaks of each cycle. The first cycle is a double brood with peaks at the end of May and again in mid-August. The second is a partial double brood with a main peak in early-July and a partial brood in mid-September. The national norm is for a single brood between late May and early July, with a partial second brood in the south in late August and early September.

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