Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Rare and restricted resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, Jun-Jul.

Forewing: 15-17mm.

Foodplant: Unknown.

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 recorded19771977
Year last recorded20022002
Number of records1122
Number of individuals1530
Unique positions24
Unique locations24
Adult records1122
Immature records00

For the region, we have a total of 22 records from 4 sites. Earliest record on file is in 1977.


sorry, no pictures available for this species yet

Species Account

For further information refer UK Moths.

Davey, P., 2009: A very local species in northern England, East Anglia and Wales, the larva has not been found in the wild. This species is considered to be an ecotype of the Small Square-spot2123 that is in the process of separation. The single-brooded and paler Fen Square-spot is on the wing during July, so between the two broods of the Small Square-spot. It is a resident of fen and marshland, and is reputed not to become active until late in the night. In Dorset, the moth has been recorded from a light trap run regularly in a garden less than a kilometre from mire habitat on Stoborough Heath. Trapping in other mire habitats elsewhere over the past fifteen years has failed to produce an example of this species: Stoborough, on 28 June, two on 4 July, two on 6 July, two on 19 July 1977, two on 26 June, 13 July 1978, 13 July, 15 July, 23 July 1979, and on 21 June 1983 (B Withers).

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