On the high mountain Geometridae of the genus Psodos Treitschke 1828 with regard to their species in the mountains of Czechoslovakia and to the question of the origin of a species in mountain regions. (Lepidoptera-Geometridae)
Povolný D., Moucha J.
Acta Entomologica Musei Nationalis Pragae 30: 143-179, 1956
Key words: Psodos, Geometridae, Lepidoptera, Czechoslovakia, boreomontane species, mountains, evolution, morphology, taxonomy, phylogeny, Orphne, Tortula, Triglavia, new subgenus, Trepidina, Alpina,