Carpinus betulus
They are polyphagous in various species of herbaceous plants and deciduous trees, mainly feeding on "Corylus avellana", "Carpinus betulus", "Fagus sylvatica", "Acer campestre", "Sambucus racemosa", as well as on "Alnus", "Crataegus", "Rosa", "Quercus" species. Adults usually are found on flowers, while the larvae develop in dead branches and stumps of trees.