Omobrachyiulus caucasicus (Karsch, 1881) comb. nov., ♂ (A–D) and ♀ (E) from S of Zərgəran, Azerbaijan (SMNG) A–D gonopods A right promere, caudal view B right opisthomere, mesal view C apical part of the same, meso-caudal view D distal part of right opisthomere, mesal view E right vulva, caudal view. Scale bars: 0.2 mm (A), 0.1 mm (B, E), 0.05 mm (C, D). Abbreviations: al apicolateral part of mesomeroidal lobe, ao apical outgrowth of basoposterior process, ap anterior process, bpp basoposterior process, dg distal groove, f flagellum, fc flagellum channel, g (supposed) gonocoxal gland, mg median groove, ml mesomeroidal lobe, mr median ridge, o opening, op operculum, s solenomere, sc seminal channel, sf spiniform filaments, si anteromesal sinus. Pictures by courtesy of Karin Voigtländer, Hans Reip and Dragan Antić.