Species Details

ABH: 62.007

BF: 1433

Family: Pyralidae

Subfamily: Phycitinae

Taxon: Cryptoblabes bistriga

Authority: (Haworth, 1811)

Vernacular: Double-striped Knot-horn

Account: Local in oak woodland throughout much of England, Wales and Ireland Easily recognised by the broad, reddish fuscous median area of forewing [Goater]. Larva feeds on Oak, Alder, Birch and Bog-myrtle, living within a spun or rolled leaf, 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: 18 — 20 mm

Surrey Flight Period: 21 Apr (2014) — 28 Aug (2015)

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

Foodplant: Alnus glutinosa (Alder), 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: Local

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/cryptoblabes-bistriga/

Statistics

* Based on adult records only.

Records: 70

Individuals: 91

Earliest Year: 2005

Latest Year: 2024

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