Species Details

ABH: 70.192

BF: 1867

Family: Geometridae

Subfamily: Larentiinae

Taxon: Aplocera plagiata

=Aplocera plagiata plagiata

=Aplocera plagiata scotica

Authority: (Linnaeus, 1758)

Vernacular: Treble-bar

Account: Common throughout much of southern Britainon on the Isle of Wight and in the New Forest but it is unclear whether this is a true reflection of status. Wingspan 37-43 mm. The main confusion species is Lesser Treble-bar A. efformata, but innermost fascia usually more sharply angled in that species. The most reliable separating characteristic on males is that plagiata has elongated, pointed claspers giving rise to a narrow abdomen tip: efformata has a blunter tip to the abdomen with rather shorter, curved claspers.Larva feeds on St John's-worts Hypericum sp.

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: 37 — 43 mm

Surrey Flight Period: 23 Apr (2015) — 22 Sep (2020)

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

Foodplant: Hypericum sp.

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, an image may be required 🤔
Further Information: https://www.ukmoths.org.uk/species/aplocera-plagiata/
Statistics

* Based on adult records only.

Records: 227

Individuals: 140

Earliest Year: 1940

Latest Year: 2024

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