The Moths of Suffolk
2290 Reed Dagger, Simyra albovenosa, (Goeze, 1781)

National Status : Notable Nb

Local Status : Resident (SMP Status 3)

Distribution and abundance : Localised to coastal and river valley fens

Habitats : Fens, marshes, wetter areas where reed occurs

Flight Period : Double-brooded;late May to late June and mid-July to August

Larval foodplants : Common Reed

Morley's Final Catalogue : This marsh insect still continues both local and very rare, though of broader range than was known in 1890, when only Captain Chawner had taken the imagines at Lowestoft, where as well as at Fritton Mr. W. C. Boyd of Cheshunt had discovered the yellowish pubescent larvae that feed openly on reeds. Later a few moths were captured at Needham by Lingwood (EMM. 1904, p. 80); Mr. E. J. G. Sparke obtained pupae in reeds at Tuddenham Fen (Norgate); and so recently as 1934 larvae were found at Brandon (Trans. ii, 292).

Wingspan details : Forewing 16-20mm, Wingspan 32-40mm

Identification

Confusion species
    AdultStriped Wainscot, Mythimna pudorina
Southern Wainscot, Mythimna straminea
Large Wainscot, Rhizedra lutosa

Compare confusion species
    Adult

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Redgrave Fen, Suffolk (26.vii.2008) © Paul Kitchener

Flight chart
JFMAMJJASOND
3 18 100 70

Life history chart
JFMAMJJASOND
pupa pupa pupa pupa ovaimago pupa imago ovalarvaimago larva pupa pupa pupa

Further Photographs

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Dingle Marshes (14.viii.2001) © A Prichard
Ipswich, Suffolk (vii.2004) © N Sherman
On Common Reed - Lakenheath Fen, Suffolk (vii.2005) © Neil Sherman
 
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VC25, Burgh Castle, Suffolk (14.v.2010) © Brian Jones
Aldeburgh, Suffolk (17.viii.2012) © Neil Sherman