Achillea (yarrow) species are used as food plants by the caterpillars of a number of Lepidoptera species, primarily moths: Monophagous species that feed exclusively on Achillea * Bucculatrix leaf miners: * B. albiguttella * B. capreella - feeds on Yarrow * B. clavenae - feeds on Yarrow * B. cristatella - feeds on Yarrow * Coleophora case-bearers: * C. argentula * C. millefolii - feeds on Yarrow * C. ptarmica - feeds on YarrowPolyphagous species that feed on Achillea among other plants * Bordered Pug (Eupithecia succenturiata) * Bucculatrix jugicola * Coleophora case-bearers: * C. gardesanella * C. trochilella * C. vibicigerella * Common Pug (Eupithecia vulgata) * Grey Pug (Eupithecia subfuscata) * Lime-speck Pug (Eupithecia centaureata) * Tawny Speckled Pug (Eupithecia i