Aedeagi of Quedius recorded from Russia: parameral view (A, D, G, J, M, P, S, V, Y), lateral view (B, E, H, K, N, Q, T, W, Z), underside of paramere (C, F, I, L, O, R, U, X, AA). Q. koltzei (modified from Coiffait 1978) (A–C); Q. scitus (D–F); Q. edmundi (G–I); Q. brevicornis (J–L); Q. mesomelinus (M–O); Q. maurus (P–R); Q. tetrapunctatus (modified from Coiffait 1969) (S–U); Q. vexans (V–X); Q. xanthopus (Y–AA). Scale bars: 0.5 mm (A, B, D, E, G, H, J, K, M, N, P, Q, S, T, V, W, V, Y, Z), 0.25 mm (C, F, I, L, O, R, U, X, AA).