Appearance
The beetle is named for its golden-black colour, with a golden bloom on its elytron and thorax. It reaches a length of 10–22 millimetres.
Habitat
The beetle is named for its golden-black colour, with a golden bloom on its elytron and thorax. It reaches a length of 10–22 millimetres.Their flight time is from May to August. For the larval development the species is quite polyphagous with a wide variety of hosts, probably including "Aconitum", "Angelica", "Anthriscus", "Artemisia", "Aster", "Carduus", "Cirsium", "Chaerophyllum", "Eupatorium", "Foeniculum", "Gentiana", "Helleborus", "Heracleum", "Peucedanum", "Salvia", "Senecio", "Urtica" and "Veratrum album". The larvae develop in the stalks of the host plant, working their way down while growing, cutting off the stalk and creating pupal cells near ground level. Adults emerge through a newly cut exit hole in the side of the stalk.References:
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