Byzantorhopalum rossicum (Timotheew, 1897), ♂ from S of Zərgəran (A–D) and ♀ from near Qurbanəfəndi (E), both in Azerbaijan (SMNG) A left gonopods, mesal view B same, caudal view C right promere, caudal view D right opisthomere, latero-oral view E right vulva, latero-caudal, somewhat apical view. Scale bars: 0.2 mm (A, B, D), 0.1 mm (C, E). Abbreviations: bpp basoposterior process, f flagellum, fc flagellum channel, lp lateral process, mg median groove, mr median ridge, op operculum, p: promere, s solenomere. Pictures by courtesy of Karin Voigtländer, Hans Reip and Dragan Antić.