Species Details

ABH: 73.119

BF: 2368

Family: Noctuidae

Subfamily: Xyleninae

Taxon: Helotropha leucostigma

=Helotropha leucostigma leucostigma

=Helotropha leucostigma scotica

Authority: (Hübner, [1808])

Vernacular: Crescent

Account: Local in fens, reed-beds, marshes, river-banks and other damp areas throughout much of the British Isles, a species of conservation concern under the UK Biodiversity Action Plan Forewing rather narrow and pointed, the costa arched, termen crenulate, dorsum weakly lobed beyond narrowed base (MBGBI Vol 10). Larva feeds on Great Fen-sedge and Yellow Iris, over-wintering as an egg.

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 — 41 mm

Surrey Flight Period: 6 Jul (1952) — 7 Sep (1996)

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

Foodplant:

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

Status: Least Concern (LC)

UK BAP: BAP(R)

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/helotropha-leucostigma/

Statistics

* Based on adult records only.

Records: 87

Individuals: 215

Earliest Year: 1950

Latest Year: 2024

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