Species Account

Select species and region:

Distribution

Summary Data

Season (Adult / Immature):

National Status: Common

Local Status: Uncommon and thinly distributed or restricted resident.

Local Record: Grade 2 See here for explanation

Flight time: Jun-Aug.

Forewing: 9-12mm.

Foodplant: Duckweed.

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:

	VC9	VC11	Region
Year first recorded	1818	1994	1818
Year last recorded	2010	2010	2010
Number of records	96	38	268
Number of individuals	110	94	408
Unique positions	59	16	150
Unique locations	56	13	138
Adult records	88	36	248
Immature records	0	0	0

For the region, we have a total of 268 records from 138 sites. Earliest record on file is in 1818.

Photos

Species Account

For further information refer UK Moths.

Davey, P., 2009: A species of stagnant water habitat in England, Wales and southern Scotland, the larva feeding on duckweeds (Lemna spp.). In Dorset, the moth is very local, colonising ponds at Hengistbury Head, Eastern Lake on Studland Heath, open freshwater reedbed at Lodmoor, and water meadows at Wareham. The national norm is for a single brood between June and August, but a bivoltine cycle is suspected in Dorset, with moths on the wing over a three-month period; the species is double-brooded on the continent. The moth regularly disperses over short to medium distances. The following light trap records refer: Walditch, on 18 July 2003 (M Parsons), West Bexington, on 18 August 1994 (R Eden), Portland, on 27 July 1994, 25 August 2001, 10 and 23 August 2003 (M Cade), Freshwater Bay, on 23 August 2003 (J Chainey).

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