Yponomeutidae: Yponomeutinae

0428 (ABH16.005) Willow Ermine Yponomeuta rorrella, (Hübner, 1796)

KR01352

Seghill, Northumberland 07-08-15
Seghill, Northumberland 07-08-15
 Photo © Ian Fisher
Seghill, Northumberland 07-08-15
 Photo © Ian Fisher
 pre-2000
 2000-2009
 2010-2019
 2020-onwards
Seghill
Seghill
 Photo © Ian Fisher


General InformationOverwinters as Overwinters as an egg.
Both sexes come to light.

Wingspan: 19-24mm
Foodplant(s): White Willow (Salix alba), Grey Willow (Salix cinerea)
Flying: One generation, July-August
UK Presence: Resident and Immigrant
National status: Proposed Red Data Book

Regional Information

Recorded in 52 (19.3%) of the 270 2km squares of Huntingdonshire.

Last recorded in August 2025

Recorded date range (Adult): 17 May to 06 September

Recorded date range (Larva/Leafmine): 12 July to 12 July

Similar Species
Earith
Earith
 Photo © David Griffiths
Bird-cherry Ermine Yponomeuta evonymella
Earith
Earith
 Photo © David Griffiths
Orchard Ermine Yponomeuta padella
 Photo © Jonathan Newman
Yponomeuta plumbella

Proposed Red Data Book