Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Rare and very local resident.

Local Record: Grade 3   See here for explanation

Flight time: One generation, May-Jul.

Forewing: 11-12mm.

Foodplant: Grasses, sedges and rushes.

Regional breakdown:

Year first recorded19401969195918831980
Year last recorded20142014197019641980
Number of records1975241
Number of individuals20156001
Unique positions1330131
Unique locations117131
Adult records1674231
Immature records00000

For the county, we have a total of 101 records from 23 sites. First recorded in 1883.


73.026 Silver Hook 03
© Ian Marshall, 28 May 2017
73.026 Silver Hook 02
© David Ashton, 11 Jul 2013
73.026 Silver Hook 01
© Dave Williamson, 3 Jun 2011

Species Account

Sutton & Beaumont, 1989: Several new localities have now been found for this species. However, it has still not been rediscovered at Askham Bog (VC64), its original Yorkshire locality (Porritt, 1883-86).

Beaumont, 2002:
VC61. Skipwith Common, six 1.8.2000 (MRB).

2012 (CHF): Porritt described this species from Askham Bog in 1883 "where it flies on sunny afternoons and just before dusk" but it has not been seen there for many years. It is most often recorded from Strensall Common but there are also recent records from Skipwith and Allerthorpe Commons where it appears to be resident. It has not been seen at Thorne Moors since 1970. There are occasional scattered records from other parts of the county.

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