Location of study area (left corner), overall sampling (right corner), and distribution of Epeorus (Caucasiron) hyrcanicus, sp. nov. (orange squares).
Part of: Hrivniak Ľ, Sroka P, Bojkova J, Godunko RJ, Manko P (2021) A new species of Epeorus (Caucasiron) (Ephemeroptera, Heptageniidae) from Azerbaijan and Iran. ZooKeys 1068: 13-26. https://doi.org/10.3897/zookeys.1068.70717