The Moths of Suffolk
2303 Straw Underwing, Thalpophila matura, (Hufnagel, 1766)

National Status : Common

Local Status : Resident (SMP Status 1)

Distribution and abundance : Widespread and very common

Habitats : Heathland, grassland, fens, open woodland, scrub and gardens

Flight Period : Single-brooded; lmid-July to mid-September

Larval foodplants : Various grasses

Morley's Final Catalogue : Ubiquitous, and often common at both sugar and light; of uncertain appearance, and not seen here by me during 1891-1899 (Mly). Recently in Ipswich marshes, Waldringfield, Southwold, abundant at Monks Soham light, Gorleston sugar and Mildenhall.

Wingspan details : Forewing 17-20mm, Wingspan 38-46mm


Confusion species
    AdultHedge Rustic, Tholera cespitis

Compare confusion species

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Ipswich, Suffolk (viii.2003) © N Sherman

Flight chart
19 100 2

Life history chart
larva larva larva larva larva pupa imago ovaimago larva larva larva larva

Further Photographs

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Found at night on acid grassland - Rendlesham, Suffolk (ii.2003) © N Sherman
Ipswich, Suffolk (viii.2010) © Neil Sherman
Great Cornard, Suffolk (8.viii.2006) © Stuart Read
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Reddish-brown form - Ipswich, Suffolk (11.viii.2016) © Paul Kitchener