Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Uncommon and mainly coastal resident.

Local Record: Grade 3   See here for explanation

Flight time: Jul-Aug.

Forewing: 16-19mm.

Foodplant: -

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 recorded18891889
Year last recorded20112011
Number of records398796
Number of individuals13282656
Unique positions83166
Unique locations57114
Adult records372744
Immature records00

For the region, we have a total of 796 records from 114 sites. Earliest record on file is in 1889.


2090 Crescent Dart 04
© Paul Harris
2090 Crescent Dart 03
© Dave Foot
2090 Crescent Dart 02
© Martin Cade, 28 Jun 2009
2090 Crescent Dart 01
© Phyl England 19 Jun 2010

Species Account

For further information refer UK Moths.

Davey, P., 2009: A coastal species in southern England and Wales, the larva feeding on a herbaceous plant species. In Dorset, the moth is confined to sea-cliff habitat with no geological preference, where it is common very locally. The national norm is for a single brood in July and August, but the following light trap records suggest a partial second generation in some years during the autumn: West Bexington, on 24 September and on 16 October 2005 (R Eden), Portland, on 25 September 1961 (C de Worms) and on 17 October 1996 (M Cade), Durlston, on 12 November 1990, 12 November 1995, two on 16 November 1997 (P Davey), and on 19 October 2008 (Dr J Clarke).

Crescent Darts noted inland are few and are likely to refer to dispersed individuals from core coastal habitat. The following light trap records refer: Iwerne Minster, on 10 July 1955 (H Moore), Colehill, on 27 June 1964 (H Driver), Bere Regis, on 5 July 1996 (S Barrett).

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