This pyralid has a pattern of black dots on its whitish forewings, resembling many ermine moths ( family Yponomeutidae ).
3.
Initially, it was mistakenly believed to be an ermine moth ( family Yponomeutidae ) of genus " Argyresthia ".
4.
Among the Lepidoptera, the pyralids and the ermine moths are not closely related, however : the latter are basal Ditrysia, while the former belong to the much more advanced Obtectomera.
5.
""'Yponomeuta rorrella " "'( "'willow ermine moth "') is a lepidopteran from the family Yponomeutidae, the ermine moths, probably a migrant, but abundantly found in Britain, mostly concentrated in Northumberland.
6.
""'Yponomeuta rorrella " "'( "'willow ermine moth "') is a lepidopteran from the family Yponomeutidae, the ermine moths, probably a migrant, but abundantly found in Britain, mostly concentrated in Northumberland.