35.026 Acompsia cinerella (Clerck, 1759)

Status and Distribution

Locally common in some parts of southern England, otherwise local to very local across much of the rest of the British Isles. Apparently absent from the Outer Hebrides and Northern Isles.

National Status: 


Bradley & Fletcher no: 

Photo courtesy of UK Moths.
Photographer: Andy Mackay
Location: Bloody Oaks Quarry, Rutland, Leics.

Provisional Map

Maps updated with all data received by February 2016.


    Acompsia cinerella (Photo: P Parsons)

    Set Specimens

    Acompsia cinerella (female), 23.vii.1993, Stover Park, Devon at light (Photo: R J Heckford)

    Dissection Group

    Foodplant and Larval Feeding Signs

    Mosses (species unknown). The larva is undescribed but is reported to feed on mosses at the base of trees.  It may also be associated with mosses on the ground as the moth has been found in areas away from trees.


    Acompsia cinerella habitat Aberdeenshire 2016 (Photo: S Palmer)

    Amongst grassy areas in woodland, herb rich grassy areas, railway and canal banks and undercliffs.

    Finding the Moth

    Larva: undescribed in the British Isles but searches in mosses near or on the base of trees in April or May would be worthwhile. It is documented that a larva was bred through at Wicken Fen in 1878 (F. Bond), without description of the larva, feeding signs or foodplant.

    Adult: swept from herb rich turf, beaten from scrub and frequent at light.

    Similar Species

    The broad forewing and hindwing with a lack of any markings are distinctive. On a few occasions specimens of this moth have been found in historic Museum collections amongst specimens of Bryotropha politella.

    Larval Occurrence

    Larval Occurrence

    Flight Period

    Flight Period

    Single brooded from early June to late August.

    Earliest: 18th May 2011 (VC31)

    Latest: 21st September 2009 (VC30)