Species Details

ABH: 62.029

BF: 1452

Family: Pyralidae

Subfamily: Phycitinae

Taxon: Phycita roborella

Authority: ([Denis & Schiffermüller], 1775)

Vernacular: Oak Knot-horn

Account: Common in oak woodland, deciduous woodland and areas with scattered trees throughout much of England; rare in Ireland Easily recognised by the reddish admixture of the forewing, together with the broadly triangular dark patch before first line [Goater]. Larva feeds on Oak, living between leaves spun together with silk.

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: 24 — 29 mm

Surrey Flight Period: 7 Jun (2020) — 19 Sep (2024)

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

Foodplant: Malus sp. (an apple), Pyrus sp., Quercus petraea (Sessile Oak), Quercus robur (Pedunculate Oak), Quercus sp. (an oak).

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

Status: Common

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/phycita-roborella/

Statistics

* Based on adult records only.

Records: 465

Individuals: 1612

Earliest Year: 1995

Latest Year: 2025

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