Sanguisorba minor
The larva is amber yellow in colour and has a brown-coloured head. It feeds on "Filipendula ulmaria", "Potentilla anserina", "Potentilla erecta", "Potentilla palustris", "Potentilla tabernaemontani", "Rubus arcticus", "Rubus chamaemorus", "Rubus saxatilis", "Sanguisorba minor" and "Sanguisorba officinalis". They mine the leaves of their host plant. The mine consists of a short corridor. The first part is narrow and tends to follow a vein. The second part is considerably widened and often forms a secondary blotch.