The Moths of Suffolk
2121 Barred Chestnut, Diarsia dahlii, (Hübner, 1813)

National Status : Local

Local Status : Uncertain (SMP Status 4)

Habitats : Moorland and broadleaved woodland

Flight Period : Single-brooded; August to September

Larval foodplants : birches, Bilberry and probably other trees and plants

Records : No recent confirmed records

Morley's Final Catalogue : Very locally abundant on sugar in woods. Bentley, Ipswich, Needham, Aldeburgh, Beccles and Lowestoft: before 1890. Later records are from only Bentley Woods (Mly, Elliott, Mera, Ml, Baylis, Hkg, Pyett, Platten); Waldringfield in 1891 (R.E. James); and Bungay in 1902 (Mn). Does not occur in Lothingland.

Wingspan details : Forewing 15-18mm, Wingspan 32-42mm

Identification

Confusion species
    AdultIngrailed Clay, Diarsia mendica
Purple Clay, Diarsia brunnea
Small Square-spot, Diarsia rubi
Square-spotted Clay, Xestia rhomboidea

Compare confusion species
    Adult

Click to view full size image
Quantock (ix.2004) © P Chapman

Flight chart
JFMAMJJASOND
100

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

Further Photographs

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Female - Lynachlaggan Insh Marshes RSPB reserve, Inverness-shire (3.ix.2012) © Neil Sherman
Beeley Moor, Derbyshire (30.viii.2009) © Matthew Deans
Female - Tulloch Moor, Inverness-shire (6.ix.2012) © Neil Sherman