The Moths of Suffolk
2197 Southern Wainscot, Mythimna straminea, (Treitschke, 1825)

National Status : Local

Local Status : Resident (SMP Status 2)

Distribution and abundance : Local, mainly coastal fens and Little Ouse and Waveney river valleys

Habitats : Fens, marshes and other areas where the foodplant grows nearby

Flight Period : Single-brooded; June to early September

Larval foodplants : Common Reed and Reed Canary-grass

Morley's Final Catalogue : Ipswich: "Timothy Last used to get numbers " (Harwood ; cf. Entom. 1867, 189). A few at Hemley in 1901 and Waldringfield in 1929 (Wlr). Dunwich (Btn); Lowestoft, and a good series at Needham, in 1903 (EMM. 1904, p. 80). Larvae common at Ampton in 1909 (Nurse, Entom.1911, 220). Beecles in Augusts of 1930 and 1932 (Mr) ; Fritton at light and on reeds in Octobers of 1932 and 1934 (Mly).

Wingspan details : Forewing 14-18mm, Wingspan 32-40mm

Identification

Confusion species
    AdultSmoky Wainscot, Mythimna impuraCommon Wainscot, Mythimna pallens
Mathew's Wainscot, Mythimna favicolorObscure Wainscot, Mythimna obsoleta
Cosmopolitan, Mythimna loreyiReed Dagger, Simyra albovenosa

Compare confusion species
    Adult

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Benacre, Suffolk (viii.2002) © N Sherman

Flight chart
JFMAMJJASOND
9 100 97 1

Life history chart
JFMAMJJASOND
larval diapause larval diapause larva larva larva larvapupa imago ovaimago larva larval diapause larval diapause larval diapause

Further Photographs

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Iken Cliff, Suffolk (27.vi.2008) © Paul Kitchener
Ipswich, Suffolk (27.vi.2011) © Neil Sherman
Showing distinguishing crest on thorax - Ipswich, Suffolk (27.vi.2011) © Neil Sherman
 
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Ipswich, Suffolk (13.vii.2017) © Paul Kitchener