Species Account

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Summary Data

Season (Adult / Immature):

National Status: Nb

Local Status: Very scarce and restricted coastal resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, late Jun-early Aug.

Forewing: 18-21mm.

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 recorded19661966
Year last recorded20042004
Number of records2346
Number of individuals3978
Unique positions1122
Unique locations1020
Adult records2346
Immature records00

For the region, we have a total of 46 records from 20 sites. Earliest record on file is in 1966.


2325 Crescent Striped 01
© Paul Harris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A local coastal species mainly restricted to south-east Britain, the larva feeding on the roots and stem bases of common saltmarsh-grass (Puccinellia maritima). In Dorset, the moth is rare and at low density, occurring exclusively on the shores within Poole Harbour. It occasionally wanders several kilometers inland from its saltmarsh sanctuary. Historically the moth appears to have colonised saltmarsh habitat on the Fleet where the foodplant survives to this day albeit in marginally fewer sites, but the moth has been seen just once in over one hundred years: Portland, at MV on 21 August 2004 (M Cade) amidst much immigrant activity. The human pressures on Poole Harbour today are immense with increased leisure pursuits, boat traffic and the accompanying problems of erosion and pollution. The threats to saltmarsh habitat and therefore the host foodplant have probably never been more acute. It is recommended that the various conservation agencies that manage saltmarsh habitat include this species in their management plans. All Dorset records follow: Chesil Beach, at sugar along the railway near the black hut on 6 August 1890 (Reverend E Bankes), Lodmoor, (Dale), Portland, two larvae in 1888 (C Partridge), Pennsylvania, on 1 August 1890 (H Vivian), Hamworthy, on 2 August 1901 (E Curtis), on 12 July 1908 (W Parkinson Curtis), Stoborough, at MV on 21 July 1980 (B Withers), Slepe Heath, two on 26 July 1984 (D Brown), Holton Heath Marsh, four at MV on 6 August 1997 (P Davey), The Triangle, three on 25 July 1984 (B Withers), Arne Wood, on 5 August, 1979, two at MV on 21 July, 24 July, three on 25 July, three on 26 July, 27 July, three on 28 July, three on 29 July and 1 August 1984 (B Pickess), Arne Heath, at MV on 22 July 1996 (P Davey), Patchins Point, at MV on 29 July 2002 (C Manley), Studland, at MV on 20 July 1982 (A Bromby), Brownsea Island, at MV on 6 July and 21 July 1966, two on 19 July 1967, 22 July 1985 (A Bromby), Lilliput, at MV on 20 July 1996, 15 July 1997 (A Bromby).

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