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.
|Year first recorded||1818||1994||1818|
|Year last recorded||2010||2010||2010|
|Number of records||96||38||268|
|Number of individuals||110||94||408|
For the region, we have a total of 268 records from 138 sites. Earliest record on file is in 1818.
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).