Species Details

ABH: 73.036

BF: 2281

Family: Noctuidae

Subfamily: Acronictinae

Taxon: Acronicta alni

Authority: (Linnaeus, 1767)

Vernacular: Alder Moth

Account: Local in broad-leaved woodland and scrub throughout much of England and Wales, also in western Ireland Larva feeds on various broad-leaved trees, including Downy Birch, Alder and Goat Willow, 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: 35 — 42 mm

Surrey Flight Period: 23 Apr (2007) — 15 Jul (1983)

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

Foodplant: Alnus glutinosa (Alder), Betula sp. (a birch), 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/acronicta-alni/

Statistics

* Based on adult records only.

Records: 320

Individuals: 128

Earliest Year: 1862

Latest Year: 2025

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