The larvae feed on seeds and seed coats within the flower heads of various Cirsium species (including Cirsium canescens and Cirsium occidentale) and closely related genera.
Cirsium | Cirsium arvense | Cirsium palustre | Union de l'Europe Occidentale | Trifolium occidentale | Melezzo Occidentale | Cirsium occidentale | Cirsium eriophorum | Cirsium acaule | A mined leaf of ''Cirsium vulgare |