Leinonen, R., Kutenkova, N., Ahola, M., Itämies, J. and Vikberg, V. 2006. The ecology, genitalia and larval morphology of <i>Polythrena coloraria</i> Herrich-Schäffer, 1855 (Lepidoptera: Geometridae), with records of its egg parasitoid <i>Telenomus acarnas</i> Kozlov & Kononova, 1977 (Hymenoptera: Scelionidae). Entomologica Fennica. 17, 1 (Jan. 2006), 56–64. DOI:https://doi.org/10.33338/ef.84288.