Kononenko, Vladimir S., Anton V. Volynkin, and Alexei Yu. Matov. 2012. “A Revision of the Xestia (Radddea) alexis (Kozhanchikov, 1928) Species-Group With a Checklist of Subgenus Raddea Alphéraky, 1892 and Description of Brachipterous Females (Lepidoptera, Noctuidae, Noctuinae)”. Zootaxa 3590 (1). Auckland, New Zealand:51–62. https://doi.org/10.11646/zootaxa.3590.1.5.