The Moths of Suffolk
2035 Round-winged Muslin, Thumatha senex, (Hübner, 1808)

National Status : Local

Local Status : Resident (SMP Status 1)

Distribution and abundance : Generally localised, more widespread in the coastal fen areas and northern valley fens

Habitats : Heathland, fens, woodland, scrub

Flight Period : Single-brooded; late June to mid-August

Larval foodplants : lichens and mosses

Morley's Final Catalogue : Very locally common in broad marshes. Needham, Stowmarket, Leiston, Beccles, Lowestoft: ante 1890. Henham in 1936 (Gd) and Ipswich, very rare at light (Pyett, Mly); numerous at Hemley in 1902-3 (Wlr); and plentiful at dusk at Beccles (Trans. ii, 292). Dunwich salt-marshes in 1937 (Hawley).

Wingspan details : Forewing 10-11mm, Wingspan 20-22mm

Identification

Confusion species
    AdultMuslin Footman, Nudaria mundana

Compare confusion species
    Adult

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Ipswich, Suffolk (vi.2004) © N Sherman

Flight chart
JFMAMJJASOND
11 100 11

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

Further Photographs

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Eye (12.vii.2002) © Paul Kitchener
Tattingstone, Suffolk (13.vii.2010) © Brian Jones
Ipswich, Suffolk (5.vii.2012) © Neil Sherman