Aedeagi of Quadriops, Radicitus and Sindolus spp. A Q. clusia B Q. depressus C Q. reticulatus D Q. similaris E S. sp. (Venezuela) F. S. sp. (Venezuela) G, H R. ayacucho: G dorsal view H lateral view I, J R. cf. granitum (Suriname): I dorsal view J lateral view K, L R. surinamensis: K dorsal view L lateral view. Scale bars: 0.1 mm (A–D); 0.5 mm (E–L).