Appearance
The adults grow up to 8–15 millimetres and can be encountered from April through July, completing their life cycle in two years, as the beetles overwinter.The head and pronotum are black, while the elytra are reddish-brown at the front and blue-gray at the back, with three oblique light stripes in the middle. The body is hairy and has a bluish tone.
Food
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.References:
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