Species Details

ABH: 70.134

BF: 1804

Family: Geometridae

Subfamily: Larentiinae

Taxon: Perizoma bifaciata

Authority: (Haworth, 1809)

Vernacular: Barred Rivulet

Account: Local on chalk downland and other habitats on calcareous soils, including woodland rides and waste ground, in England, Wales and southern Scotland Fairly unmistakable. Larva feeds on seeds of Red Bartsia, over-wintering as a pupa.

Accounts provided by and used with the kind permission of Mike Wall, Hampshire County Moth Recorder. These will in due course be gradually replaced with species accounts with a Surrey context.

Wingspan: 20 — 26 mm

Surrey Flight Period: 15 Jul (1957) — 4 Sep (1964)

The flight period of overwintering adults are not given. See the flight chart below the distribution map.

Foodplant: Odontites verna.

Foodplant accounts are from the HOSTS database — Natural History Museum, London, UK. (CC0).

Status: Least Concern (LC)

UK BAP:

WCA:

Click here to view the full geology map of Surrey.

Verification Grade: 2 — Care needed to identify 🤔
Further Information: https://www.ukmoths.org.uk/species/perizoma-bifaciata/
Statistics

* Based on adult records only.

Records: 101

Individuals: 26

Earliest Year: 1933

Latest Year: 2020

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