Anemone nemorosa
Habitat "Fagus" and "Quercus" ancient woodlands, also in extensive parks in with overmature trees. Arboreal, but descends to visit flowers of "Alnus", "Anemone nemorosa", "Carpinus", "Chrysosplenium oppositifolium", "Corylus", "Hamamelis mollis", "Lonicera xylosteum", "Populus tremula", "Salix", "Sambucus", "Tussilago". The flight period is end February to end April.