Hydroporus nigrita (Fabricius, 1792)

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 nigrita (Fabricius, 1792)

MATERIAL. Kharovsky distr. : western part of Kharovsk town , 59°57´15´´N 40°09´50´´E, river (depth 0.2 m, sandy-rocky bottom, pH=7.4, TDS=230 ppm), 21.VIII.2020, 1 ex., DP, AK. 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, 2 exs., AK, DP. Verkhovazhsky distr.: 5 km SW of Smetanino rural locality, 60°36´41´´N 41°45´32´´E, power line, puddles (clay bottom, depth 0.01–0.1 m), 29.VII.2020, 2 exs., DP .

* Hydroporus planus (Fabricius, 1781) MATERIAL. Kharovsky distr. : western part of Kharovsk town, 59°57´15.5´´N 40°09´51.0´´E, puddle in the roadside of an asphalt road (depth 0.1 m, clay-silty bottom, pH=8.2, TDS=240 ppm), 21.VIII.2020, 1 ex., DP, AK .