The Moths of Suffolk
2484 Pinion-streaked Snout, Schrankia costaestrigalis, (Stephens, 1834)

National Status : Local

Local Status : Resident (SMP Status 3)

Distribution and abundance : Local, not infrequent in northern river valleys and coastal areas

Habitats : Wet woodland, fens, wet meadows, riversides and other marshy areas

Flight Period : Single-brooded; June to mid-August. Occasional partial second brood late August to late September

Larval foodplants : Not known in the wild

Morley's Final Catalogue : Hitherto supposed very rare, noted only at Beccles and Stowmarket. But both (referring to this species and White-line Snout) - that the species be distinct is most improbable - flew to light and sugar at Fritton marshes and those of the Waveney at North Cove in the utmost profusion in September 1932-4 (D, Mr); and the former, which occurs at Barton Mills (Waters), was taken at Blythburgh and Benacre Broad in 1933-6 (Mly).

Wingspan details : Forewing 9-11mm, Wingspan 16-22mm

Identification

Confusion species
    AdultWhite-line Snout, Schrankia taenialis

Compare confusion species
    Adult

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Ipswich, Suffolk (viii.2003) © N Sherman

Flight chart
JFMAMJJASOND
52 42 100 30

Life history chart
JFMAMJJASOND
larval diapause larval diapause larval diapause larva pupa imago larvaimago larvapupaimago imago larvaimago larval diapause larval diapause

Further Photographs

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North Wales (16.vii.2005) © Lee Gregory
Bawdsey, Suffolk (12.vi.2009) © Matthew Deans