The Moths of Suffolk
2321 Dark Arches, Apamea monoglypha, (Hufnagel, 1766)

National Status : Common

Local Status : Resident (SMP Status 1)

Distribution and abundance : Widespread and abundant

Habitats : Can occur almost anywhere

Flight Period : Single-brooded; June to August; sometimes a partial second brood September to November

Larval foodplants : Grasses

Morley's Final Catalogue : Both (referring to Light Arches as well) in such numbers as to be pestilent at light and sugar.

Wingspan details : Forewing 19-26mm, Wingspan 46-54mm

Identification

Confusion species
    AdultNorthern Arches/Exile, Apamea zeta
Crescent Striped, Apamea oblonga

Compare confusion species
    Adult

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Bawdsey (7.xi.2004) © M Deans

Flight chart
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40 100 11

Life history chart
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Further Photographs

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Eye, Suffolk (16.vi.2006) © Paul Kitchener
Orford Ness, Suffolk (24.vii.2010) © A Prichard
Ipswich, Suffolk (19.vi.2012) © Neil Sherman
 
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Ipswich, Suffolk (25.vi.2012) © A Prichard