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The fennoscandian species of the genus hydaticus coleoptera dytiscidae


, : The fennoscandian species of the genus hydaticus coleoptera dytiscidae. Entomologica Scandinavica 12(1): 103-108

A key is given for the separation of the species of the genus Hydaticus Leach found in Fennoscandia. Diagnostic characters are discussed and illustrations of the male genitalia are provided. The nomenclature of the Europeans species of the subgenus Hydaticus s. is discussed and a check list is given. H. moestus Sharp and H. laevipennis Thomson are considered synonyms of H. aruspex Clark.

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