Male genitalia A, C, E Bolitogyrus strigifrons (Wendeler) B, D, F B. pseudostrigifrons Brunke G, I B. nigropolitus Smetana H, J B. nigropolitoides A, B, G, H median lobe in lateral and C, D ventral view. E, F, I, J inner face of paramere, apex. Scale bars: 0.5 mm (A–D, G, H); 0.1 mm (E, F, I, J).