Cirsium arvense
Beetles and larvae are polyphagous, feeding on "Asteraceae" ("Tanacetum vulgare", "Achillea millefolium", "Centaurea nigra", "Tussilago", "Cirsium arvense"), "Brassicaceae" ("Cardamine pratensis", "Sinapis arvensis") and other plants (especially "Potentilla auserina", "Succisa pratensis", "Scabiosa columbaria", "Thymus serpyllum", "Veronica" and "Hypericum perforatum").