Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Scarce and local resident.

Local Record: Grade 3   See here for explanation

Flight time: Mainly one generation May-Jul, (Aug-Oct).

Forewing: 14-16mm.

Foodplant: Beech.

Regional breakdown:

Year first recorded19071857188318832008
Year last recorded20142014201420142014
Number of records235658294
Number of individuals175875344
Unique positions152633194
Unique locations152730194
Adult records235658284
Immature records00000

For the county, we have a total of 170 records from 95 sites. First recorded in 1857.


70.037 Clay Triple-lines 03
© Andy Nunn
70.037 Clay Triple-lines 02
© Charles Fletcher, 1 Jul 2009
70.037 Clay Triple-lines 01
© Damian Money

Species Account

Sutton & Beaumont, 1989: The only recent records of this species in the County are from south of VC63, both in 1984. Previously this species had not been taken since Porritt (1983-86, 1904) when it was found mainly in VC63 but also in vice-counties 61, 62 and 64.

Argus 47, 2001-04:
VC64. Bellflask, 26.7.2002 (B&SM). NEW VICE-COUNTY RECORD.

Argus 56, 2008:
VC65. Thorpe Perrow arboretum, 4.7.2008 (CHF, JCW, DB et al.). NEW VICE-COUNTY RECORD.

2012 (CHF): There has been a major range expansion to the north and west in the last ten years and we have recent records from all five VCs. It should now be possible to find this moth in beech-rich areas all over the county.

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