| Hydraena dentipes Germar, 1842 |
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| Hydraena angulosa Mulsant, 1844 |
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| Hydraena assimilis Rey, 1885 |
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| Hydraena britteni Joy, 1907 |
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| Hydraena gracilis Germar, 1824 |
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| Hydraena lapidicola Kiesenwetter, 1849 |
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| Hydraena melas Dalla Torre, 1877 |
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| Hydraena minutissima Stephens, 1829 |
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| Hydraena nigrita Germar, 1824 |
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| Hydraena palustris Erichson, 1837 |
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| Hydraena polita Kiesenwetter, 1849 |
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| Hydraena pulchella Germar, 1824 |
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| Hydraena pygmaea pygmaea G.R. Waterhouse, 1833 |
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| Hydraena reyi Kuwert, 1888 |
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| Hydraena riparia Kugelann, 1794 |
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| Hydraena heterogyna doderoi Ganglbauer, 1901 |
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| Hydraena subimpressa Rey, 1885 |
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| Hydraena testacea Curtis, 1830 |
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| Hydraena truncata truncata Rey, 1885 |
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| Hydraena belgica d’Orchymont, 1930 |
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| Hydraena alpicola Pretner, 1931 |
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| Hydraena sternalis Rey, 1893 |
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| Hydraena bohemica Hrbacek, 1951 |
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| Hydraena italica Ganglbauer, 1901 |
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