Hydraena (Hydraena) britteni Joy, 1807

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 : 135

* Hydraena (Hydraena) britteni Joy, 1807

Figs 10–11 . 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 (sandy-rocky bottom, pH=7.8), 16.VII.2020, 7 exs., AK, DP .

Figures

Figs 10–13. Hydraena spp.: 10–11 — Hydraena britteni; 12–13 — H. pulchella; 10, 12 — habitus; 11, 13 — aedeagus, lateral view. Scale bar: for 10, 12 — 1.0 mm; for 11, 13 — 0.3 mm. Рис. 10–13. Hydraena spp.: 10–11 — Hydraena britteni; 12–13 — H. pulchella; 10, 12 — габитус; 11, 13 — Эдеагус, сбоку. МасШтаб: длЯ рис. 10, 12 — 1.0 мм; длЯ рис. 11, 13 — 0.3 мм.