Dolichopus linearis (Meigen, 1824)

25. Dolichopus linearis (Meigen, 1824) View in CoL

Figs. 1–3 View Figs

References. Negrobov, Selivanova 2006.

= Dolichopus rufitinctus Becker, 1917: 154 View in CoL , syn. nov. Type-locality: ‘Ural bei Newiansk’ (= Sverdlovsk Oblast, Nevyansk).

Material. 1♂, Yekaterinburg, Razdolnaya 26, Oktyabrsky district , 56.80 ° N, 60.79 ° E, 08.08.2023, Koblova GoogleMaps ; 1♂, Sverdlovsk Oblast, Turinsk, Zagorodnaya Street , 58.042914 ° N, 63.686219 ° E, 23.07.2024, Koblova GoogleMaps .

Notes. Becker described his new species from the single male ( Becker 1917), which was nev- er studied later, and D. rufitinctus was never reported again outside the type locality in the Sverdlovsk Oblast. It was described with entirely yellow antennae ( Fig. 2 View Figs ) and almost entirely yellow coxae ( Fig. 1 View Figs ); the characters are unusual for the boreal Dolichopus species, but sometimes found in juvenile and discolored specimens. The male was described having ‘Vorderschienen ohne Endborste an der Spitze der Unterseite; Mittelschienen ebendort mit einer deutlichen Borste’ (fore tibia without apical seta on ventral side; mid tibia with distinct seta at the same place). The long apical ventral seta on fore tibia ( Fig. 3 View Figs ) is a diagnostic male character for many Dolichopus species, while the mid tibia always bears a crown of 4–5 apical setae in this genus. Keeping in mind that the location of the mentioned above seta was mistakenly determined, D. rufitinctus is indistinguishable from D. linearis by morphological features. The latter is a widespread Trans-Palaearctic species, common in some places. It was collected several times in the environs of Yekaterinburg, not far from the type locality of D. rufitinctus . Therefore, we consider the two names as synonyms.