Main: (Noctuidae / Hadeninae)
73.288 [B&F: 2191] Double Line (Mythimna turca) (Linnaeus, 1761)


Nationally scarce (Nb) in parks, open woodland, damp grassland, woodland edges and scrub in parts of south-western England. It seems to have vanished from many of its old haunts in the eastern part of southern England and is now found most commonly in suitable areas of Cornwall, Devon and Somerset, south-west and central Wales and Cheshire. The reasons for its decline are not understood. In Hampshire former strongholds were Havant Thicket and parts of Woolmer Forest, but it has long since gone from the New Forest. The most recent Hampshire records are of singletons at Deadwater Valley on 17 July 2006 and Testside Lakes on 24 July 2010. Not recorded from the Isle of Wight to date. Wingspan 44-52 mm. Larva feeds on Common Bent, Creeping Soft-grass, Cock's-foot and Wood Meadow-grass.

Flightime guide

Records Received By Year

% of total records
Max records: 6
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Percentage of Total Records

Total records
Max Percentage: 0.0030565304
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Phenology - Adult Records

Max records: 5
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

Detail records

VC10 Isle of Wight
Totland (SZ38)18-Jun-2018oneKnill-Jones, SAAdult
VC11 South Hampshire
Denny Wood, NF (SU30)1879-Lockyer, BAdult
New Forest (SU30)1928-Anon-
Soberton (SU61)20-Jul-1955oneLangmaid, JRAdult
Havant Thicket (SU71)17-Jul-1959twoB. Goater, MW Harper, MWAdult
Waterlooville (SU61)20-Jul-1969oneDickson, RJAdult
Emer Bog NR (SU32)29-Jul-1978oneDobson, AHAdult
South Brockenhurst (SU20)29-Jun-2010oneWynn, RBAdult
South Brockenhurst (SU20)06-Jul-2010oneWynn, RBAdult
Wickham Common (SU51)16-Jul-2010oneCoker, KAdult
Titchfield Haven NNR (SU50)05-Aug-2010oneDuffin, BAdult
Brockenhurst (SU20)07/1881-Salwey, RAdult
Hollands Wood (SU30)07/1881-Salwey, RAdult
VC12 North Hampshire
Liphook (SU83)06-Jul-1957sevenOldfield, MAdult
Hook Common HWT reserve (SU75)14-Jul-1970oneTrasenster, M-
Deadwater Valley (SU83)17-Jul-2006oneMontegriffo, NJAdult
Liss (SU72)01-Jul-2010oneTwine, PAdult
Leckford (SU33)09-Jul-2010oneDavis, AMAdult
Hollywater Pond Area (SU83)5289oneOldfield, MAdult

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