35.023 Dichomeris ustalella (Fabricius, 1794)

Status and Distribution

Scarce, found very locally in Monmouthshire, West Gloucestershire and Worcestershire.

National Status: 

pRDB 1

Bradley & Fletcher no: 

Photographer: P Clement

Provisional Map

Maps updated with all data received by January 2020.


    Dichomeris ustalella (Photo: O Wadsworth)  Dichomeris ustalella (Photo: O Wadsworth)  Dichomeris ustalella (Photo: P Clement)


    Dichomeris ustalella larva (Photo: O Wadsworth)   Dichomeris ustalella larva © G Meredith 

    Dissection Group

    Foodplant and Larval Feeding Signs

    Dichomeris ustalella spinning © G Meredith  Dichomeris ustalella spinning © G Meredith

    Tilia cordata (small-leaved lime), see plant distribution map. In Europe, also reported to use Betula pendula (silver birch), Carpinus betulus (hornbeam), Corylus avellana (hazel), Fagus sylvatica (beech), Salix sp. (willows), Prunus sp. and Acer campestre (field maple).

    Between flatly spun leaves eating out holes between the veins or occasionally between a spun bract and leaf.

    Foodplant Map


    Deciduous woodland containing small-leaved lime.

    Finding the Moth

    Larva: feeds between flatly spun leaves or a leaf and a bract, overwintering from October in a folded leaf on the ground.

    Adult: has been known to rest in the sunshine on a leaf of the foodplant and comes to light.

    Similar Species

    Distinctive palps and the dark, rich reddish-brown with the central golden-ochreous suffusion rule out any other species.

    Larval Occurrence

    Larval Occurrence

    Flight Period

    Flight Period

    Single-brooded, flying from late May to June, occasionally into early July.