Species Details

ABH: 70.121

BF: 1789

Family: Geometridae

Subfamily: Larentiinae

Taxon: Rheumaptera undulata

Authority: (Linnaeus, 1758)

Vernacular: Scallop Shell

Account: Common in damp woodland and scrub throughout much of England, southern Scotland and Wales Unmistakable. Larva feeds on Sallow, Aspen and Bilberry, 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: 32 — 40 mm

Surrey Flight Period: 2 Jun (2006) — 31 Aug (1962)

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

Foodplant: Populus tremula (Aspen), Salix sp. (a sallow), Vaccinium myrtillus (Bilberry).

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: 5 — Adults unidentifiable 😖 or pending grading 🧐
Further Information: https://www.ukmoths.org.uk/species/rheumaptera-undulata/
Statistics

* Based on adult records only.

Records: 194

Individuals: 98

Earliest Year: 1840

Latest Year: 2019

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