Sanguisorba officinalis
The larvae feed on "Spiraea ulmaria", "Sanguisorba officinalis", "Sanguisorba parviflora", "Ulmaria" and "Filipendula" species (including "Filipendula kamtschatica"). They live in spun shoots of their host plant. Larvae can be found from May to June. Pupation may take place in the larval feeding place, in a folded leaf-edge or on the ground.