Aedeagi of Quedius recorded from Russia: parameral view (A, E, I, L, O, R, U, W), lateral view (B, F, J, M, P, S, X), underside of paramere (C, G, K, N, Q, T, V, Y), median lobe in ventral view (D, H). Q. subunicolor (A–D); Q. altaicus (E–H); Q. truncicola (I–K); Q. microps (L–N); Q. infuscatus (O–Q); Q. lundbergi (R–T); Q. amurensis (modified from Smetana and Shavrin 2018) (U, V); Q. sofiri (W–Y). Scale bars: 1 mm (A, B, E, F), 0.8 mm (C, D, G, H), 0.5 mm (I, J, L, M, O, P, R, S, U, W, X), 0.25 mm (K, N, Q, T, V, Y).