Aedeagi of Quedius recorded from Russia: parameral (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. jenisseensis (A–C); Q. nigriceps (D–F); Q. limbatus (G–I); Q. suturalis (J–L); Q. humeralis (M–O); Q. sublimbatus (P–R); Q. gemellus (S–U); Q. umbrinus (V–X); Q. maurorufus (Y–AA); Q. nemoralis (BB–DD). Scale bars: 0.5 mm (A, B, D, E, G, H, J, K, M, N, P, Q, S, T, V, W, V, Y, Z, BB, DD), 0.25 mm (C, F, I, L, O, R, U, X, AA, CC).