Food Plant: Various Thistles such as Cirsium spp.and related genera (Krátký J -2021), Carduus spp. (Thistles), Silybum marianum (Milk Thistle)

Egg: laid singly on the underside of old and new leaves.

Mine: August - June

Notes: The young larvae mine straight into the leaf, feeding beneath the lower epidermis. By the third instar they make full depth mines. The larvae are similar to those of S.rubidumand hibernate over the winter. Pupation occurs from March to late July in the soil. A widespread and common species in Britain and Ireland

Data:

Image:©

References:
Krátký J (2021) - New distributional data on beetle species (Coleoptera) from the Canary Islands. - Weevil News 90: 1-5.