|16.005 ~ 0428 ~ Yponomeuta rorrella ~ Willow Ermine|
Resident & Migrant. Local, found in Britain as far north as Northumberland.
Recorded from a single site at Commins Coch in the west of the county.
Wingspan : M & F, 19-24mm.
|Flight time & Voltinity
Wherever the foodplant is found.
White willow and grey willow.
Web forming. Eggs (probably) laid in a similar fashion to other spp. of Yponomeuta. Larva feed gregariously in a web, usually 6-12 in each web. Pupates gregariously in web.
Photo by PRW, 19th July 2006, Commins Coch