Species Details

ABH: 62.038

BF: 1437

Family: Pyralidae

Subfamily: Phycitinae

Taxon: Acrobasis consociella

Authority: (Hübner, [1813])

Vernacular: Grey Oak Knot-horn

Account: Local in oak and other deciduous woodland and areas with scattered oak-trees throughout most of the British Isles, but not in northern Scotland A greyer species than Conobathra repandana or C. tumidana, differing particularly in the greyer basal area of the forewing, which is distinctly reddish in the Conobathra, although in some parts of the country, the median and outer parts of the wing are purplish or crimson, the basal area is always grey [Goater]. Larva feeds on Oak, living gregariously within spun or rolled leaves.

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: 19 — 22 mm

Surrey Flight Period: 9 Jun (2016) — 13 Oct (2025)

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

Foodplant: 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: 2 — Care needed to identify, an image may be required 🤔
Further Information: https://www.ukmoths.org.uk/species/acrobasis-consociella/
Statistics

* Based on adult records only.

Records: 184

Individuals: 1006

Earliest Year: 1996

Latest Year: 2025

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