They lay eggs in late summer on the upper side of sallow leaves, preferring the broad-leaved sallow, Salix caprea, but they will also use the narrow-leaved sallow, Salix atrocinerea, and various species of poplar.
Salix atrocinerea, a species of willow native to Europe commonly called grey willow
A forest of S. atrocinerea occupies the eastern end of Cortegada Island in permanently or temporarily waterlogged soils, and a mixed forest with Alnus glutinosa occupies the end west side.
Salix | Salix viminalis | Salix caprea | Salix cinerea | Salix arctica | Salix purpurea | Salix atrocinerea | Salix acutifolia | Salix alba | Salix alaxensis | Salix, Pennsylvania | Salix matsudana | ''Salix fragilis'' in native riparian zone | Salix babylonica |