Reference
Toomas Tammaru, Tarmo Virtanen, Kai Ruohomäki, Lauri Kaila (1995): Eupithecia veratraria Herrich-Schäffer, 1850 new to Scandinavia, with the redescription of E. veratraria ssp. arctica Viidalepp, 1974 (Lepidoptera, Geometridae) – Nota lepidopterologica – 18: 297 - 303.