Hydroporus discretus Fairmaire et Brisout, 1859

Sazhnev, A. S., Prokin, A. A., Komarova, A. S. & Philippov, D. A., 2022, New records of aquatic and riparian beetles (Coleoptera) for the fauna of the Vologda Oblast (Russia), Russian Entomological Journal 31 (2), pp. 132-139 : 134

* Hydroporus discretus Fairmaire et Brisout, 1859

MATERIAL. Tarnogsky distr. : 2.6 km N of Sergievskaya vill.: Bol’shaya Salanga River , 60°16´02´´N 43°55´48´´E, ripal and on the sandbar (depth 0.3–0.7 m, current velocity 0.01–0.2 m /s, pH=7.9, sandy-rocky bottom), 17.VII.2020, 1 ex., DP, AK Ust-Kubinsky distr.: 0.3 km SW of Kuznetsovo vill., 59°43´17.5´´N 39°48´21.0´´E, puddle in the roadside of a dirt road (depth 0.1–0.2 m, clay bottom, pH=8.0, TDS=195 ppm), 21.VIII.2020, 4 exs., DP, AK. Vytegorsky distr.: 6.1 km NE of Pankratovo vill., Indomanka River, 60°48´20´´N 38°03´59´´E, puddle in the roadside of a dirt road (depth 0.1–0.3 m, clay bottom, pH=7.4, TDS=76 ppm), 1.IX.2020, 10 exs., DP, AK. 1.4 km E of Konetskaya vill, Piyavochnoe aapa mire, 60°46´57´´N 36°50´37´´E, flarks (depth 0.05–0.15 m, peaty bottom, pH=6.5–6.8, TDS=12 ppm), 3.IX.2020, 11 exs., AK, DP .

* Hydroporus memnonius Nicolai, 1822 MATERIAL. Velikoustyugsky distr. : 4 km SE of Verkhnyaya Toz’ma vill., Bol’shaya Toz’ma River, 60°33´07´´N 45°14´57´´E, ripal (depth 0.1 m, sandy-rocky bottom, pH=7.8), 16.VII.2020, 1 ex., AK, DP.