Distribution of the Omobrachyiulus caucasicus (red and green) and O. sevangensis (black) species groups in the Caucasus (excluding O. caucasicus comb. nov. known from numerous records in the region, and with a distribution range exceeding the map coverage): O. adsharicus (ring), O. curvocaudatus (diamond), O. geniculatus (pentagon), O. divaricatus (dotted line indicating the approximate distribution range), O. macrourus (open square), O. unugulis sp. nov. (filled circle), O. sevangensis comb. nov. (filled square), O. cf. sevangensis comb. nov. (filled square with white dot), O. kvavadzei sp. nov. (cross), O. ponticus sp. nov. (star), and O. trochiloides sp. nov. (triangle).