Species Details

ABH: 70.234

BF: 1913

Family: Geometridae

Subfamily: Ennominae

Taxon: Ennomos alniaria

Authority: (Linnaeus, 1758)

Vernacular: Canary-shouldered Thorn

Account: Common in woodland, scrub, parks and gardens throughout the British Isles. Larva feeds on Downy and Silver Birch, Alder and Goat Willow.

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: 38 — 42 mm

Surrey Flight Period: 5 Jul (2017) — 17 Oct (1931)

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

Foodplant: Polyphagous.

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: 1 — Relatively easily identified 👌

Further Information: https://www.ukmoths.org.uk/species/ennomos-alniaria/

Statistics

* Based on adult records only.

Records: 628

Individuals: 431

Earliest Year: 1886

Latest Year: 2025

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