16.005 BF428 - Yponomeutidae - Yponomeutinae - Yponomeuta rorrella - (Willow Ermine)

16.005 BF428 - Yponomeutidae - Yponomeutinae - Yponomeuta rorrella - Willow Ermine - (Hübner, 1796)

Adult Micro: CAT 2 - Confusion Species - Larval Case: C2 - Photo or specimen of larval case/plant required -

- click for Verification Guidelines

- Rare / Uncommon / Scarce - Migrant

Taxonomy: Micro >> Yponomeutidae

ID Difficulty: Red

- difficult to identify - detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Orchard Ermine (Yponomeuta padella), Apple Ermine (Yponomeuta malinellus), Spindle Ermine (Yponomeuta cagnagella)

ID pointers: Difficult to ID as are the majority of the yponomeuta group, but longer and more narrow winged, with two toned white and grey forewings with black dots which are smaller in size than other yponomeuta. Mostly white in the dorsal half and in a thin line along the costa with a small white blotch along the costa near the apex which is contrasting against the grey rear third.

Distribution: (Last record: 06/09/2024 at Long Eaton ) - Not listed in Harrison & Sterling (1988) – Most probably a local species, and occasional migrant found where there is White Willow Salix alba and Grey Willow (S.cinerea) A huge migrant influx occurred in 2023

Flight Period: July / August / - On the wing July – August

Moth Activity: Nocturnal - and is attracted to light

Wingspan: 19-24mm

Food Plant: Salix – White Willow & Grey Willow

Last Recorded Date: 06/09/2024

Last Recorded By: Marion Bryce

Last Recorded General Area: Long Eaton

No First Date Information Recorded