Reference
Vasily Victorovich Anikin, Sergej A. Sachkov, Vadim V. Zolotuhin, Elena M. Antonova (2000): "Fauna lepidopterologica Volgo-Uralensis" 150 years later: changes and additions. Part 3. Geometridae (Insecta, Lepidoptera) – Atalanta – 31: 293 - 326.