Polia (Polia) hepatica (Clerck, 1759)

Phalaena hepatica Clerck, 1759, Icones Insectorum Rariorum cum Nominibus eorum Trivialibus, Locisque e C. Linnaei 1: pl. 8, fig. 3. Type-locality: [?Europe] no locality given.

Taxonomic notes. This species is somewhat similar to the former one in the general shape of genital capsule but the bundle of bristles on saccular processes is slightly more expressed on both sides. The vesica has a subbasal and subterminal helicoidal torsion but with a typical, long stripe of fasciculate cornuti. The species has an extended boreo-nemoral, Trans-Palaearctic distribution with numerous colour forms but without any clear subspecific subdivision.