25. Dolichopus discifer Stannius, 1831

References. Negrobov, 1991: 109 (no material provided; as Dolichopus nigricornis Becker, 1917, nec Meigen, 1924).

Material examined. 1♂, Sakhalin Is., 8 km N Yuzhno-Sakhalinsk, 13.08.1973, Zlobin ; 2♂, Sakhalin Is., 38 km E Aleksandrovsk-Sakhalinsky, near Tymovsky, 17– 19.07.1982, Shamshev ; 1♂, Sakhalin Is., 44 km SW Yuzhno-Sakhalinsk, near Taranay 4.08.1982, Shamshev ; 3♂, 1♀, Sakhalin Is., 29 km SW Yuzhno-Sakhalinsk, near Dachnoye, 25– 27.07.1982, Shamshev ; 2♂, Sakhalin Is., 29 km SW Yuzhno-Sakhalinsk, near Urozhainoe, 13.07.1982, Shamshev .

Distribution. Type locality: Germany. Holarctic species known also from Chukotka, Kamchatka, Kuriles and Sakhalin Island. First reliable record from Sakhalin.