Species Details

ABH: 3.001

BF: 15

Family: Hepialidae

Taxon: Triodia sylvina

Authority: (Linnaeus, 1761)

Vernacular: Orange Swift

Account: Common in gardens, woodland and rough grassland, and on roadside verges, downland and moorland throughout Britain, including the Isles of Scilly, but excluding the Northern Isles Male brighter than female, but both distinguished from their congeners by the open dark-edged V-shaped diagonal lines on forewing. Larva feeds within roots of Broad-leaved Dock, Dandelion, Bracken and various grasses, over-wintering twice.

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: male 32 — 39 mm; female 36 — 48 mm

Surrey Flight Period: 6 Jun (2024) — 16 Sep (1922)

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

Foodplant: Pteridium 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: 1 — Relatively easily identified 👌

Further Information: https://www.ukmoths.org.uk/species/triodia-sylvina/

Statistics

* Based on adult records only.

Records: 481

Individuals: 188

Earliest Year: 1919

Latest Year: 2024

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