Bolitogyrus magnimaculosus Cai et al. (A–C), B. nokrek Brunke (D–G), B. lasti Rougemont (H–J) and B. tigris Brunke (K–M). Aedeagus in parameral view (H, K), median lobe in parameral view (A, D), median lobe in lateral view (B, E, I, L), peg setae of paramere (C, F, J, M), paramere in lateral view (G). Figures A–C modified from Cai et al. (2015). Scale bars: 0.5 mm.