The Moths of Suffolk
2079 Scarce Black Arches, Nola aerugula, (Hübner, 1793)

National Status : Immigrant; transitory resident

Local Status : Rare immigrant (SMP Status 4)

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

Larval foodplants : Bird's-foot Trefoil and various species of clover

Records : Thorpeness (S Wakeley & J M Chalmers-Hunt, 14.vii.1964 & 15.vii.1964; Dr Banner 16.vii.1964; Rev A P Waller, 21.vii.1964), Landguard (N Odin & M Marsh, 2004), Bawdsey (M Deans, 29.vii.2004 & 19.vii.2006), Dunwich Heath (C Moore & D Brougham, 19 & 20.vii.2006), Mendlesham (S Woolnough, 25.vii.2006)

Morley's Final Catalogue : One at light in Hemley Rectory on 21 July 1904 (Wlr. EMM. xl, 236). Elsewhere Kent and I. Wight only, in Britain : probably extinct even there.

Wingspan details : Forewing 8-9mm, Wingspan 15-20mm

Identification

Confusion species
    AdultKent Black Arches, Meganola albula
Least Black Arches, Nola confusalis
Jersey Black Arches, Nola chlamitulalis

Compare confusion species
    Adult

Flight chart
JFMAMJJASOND
100

Life history chart
JFMAMJJASOND
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Further Photographs

Click to view full size image
Dead specimen but shows relevant features. Caught by Clive Moore. - Dunwich Heath, Suffolk (vii.2006) © Matthew Deans