The Moths of Suffolk
1804 Barred Rivulet, Perizoma bifaciata, (Haworth, 1809)

National Status : Local

Local Status : Resident (SMP Status 3)

Distribution and abundance : Scarce

Habitats : Grassland on chalky soils, woodland

Flight Period : Single-brooded; July to August

Larval foodplants : Ripening seeds of Red Bartsia and Eyebright

Records : Weston (N Muddeman, 1997), Kings Forest (R Eley, 1996; SMG, 14.viii.2004), Aldeburgh (A Watchman, 23.viii.1996), Eye (P Kitchener, 1999), Lineage Wood (SMG, 21.viii.1998 and A Prichard & G Bull, 13.vii.2001), Brandon (G Austin, 22.vii.2001), Landguard (N Odin and M Marsh, 20.viii.2003), Barrow (A Parr, 2003 & 2005), Ramsey Wood (SMG, 7.viii.2004), Sibton (N Sherman, 4.viii.2004) and Elveden (B Statham, viii.2002), Hintlesham (SMG, 7.viii.2004), Sicklesmere (S Dumican, 22.ix.2007)

Morley's Final Catalogue : Single and very rare specimens alone noted. Ipswich (Stainton, Man. 1859, ii, 81); Brandeston (Revd. Joseph Greene); Tuddenham, since 1890 (Waters).

Wingspan details : Forewing 9-11mm, Wingspan 20-26mm

Identification

Confusion species
    AdultBarred Carpet, Perizoma taeniata
Heath Rivulet, Perizoma minorata

Compare confusion species
    Adult

Click to view full size image
Walton Common, Somerset (24.viii.2007) © Stuart Read

Flight chart
JFMAMJJASOND
12 37 100

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

Further Photographs

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Dorset (4.viii.2002) © M Deans
Spexhall, Suffolk (5.viii.2009) © Matthew Deans
Spexhall, Suffolk (5.viii.2009) © Matthew Deans