70.134 (1804) Barred Rivulet Perizoma bifaciata (Haworth, 1809)

Status
Resident. Scarce.
 
Flight period
J F M A M J J A S O N D
























 
History
Buchanan White of Perth (1895) listed it as occurring in Colvend and Southwick parishes (VC73) which he stated was the first Scottish locality. There were a handful of records from the Gatehouse of Fleet Rothamsted Station during 1974-75.
 
The next record did not come until 1998 when survey work carried out on MoD land at Abbey Burn Foot produced a record. A further four records during 2000-05 at sites within a couple of miles of the coast in Kircudbrightshire came next, followed by two being trapped at Claymoddie (VC74) on a Grey Daggers Moth Group Field Meeting on 21st July, 2006, when 125 species were captured in one night.
The first for Dumfriesshire came in late July 2011, with a single record in 2012 and 2013 all from Glencaple/Castle Corner area.
 
Life cycle
One generation. Overwinters as a pupa underground, for anytime up to five years. Larvae during August to October inside the seed capsules until too large, then external on the foodplant.
 
Larval foodplants
The larvae feed on Red Bartsia and Eyebright.
 
Identification
The dark grey central cross-band with fine white edging on an otherwise dull grey-brown forewing is diagnostic.
 
Habitat
Grassland and open derelict ground.
© Keith Naylor, Dalbeattie, 31 July 2005

Local distribution map

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Distribution map displays records from the National Biodiversity Network (See terms and conditions).

The following datasets are included:

  • Butterfly Conservation - Macro-moth provisional distribution for the British Isles (excluding the Republic of Ireland) from the National Moth Recording Scheme
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