A New Species of the Genus Hydrovatus Motschulsky (Coleoptera: Dytiscidae) from Japan

Kohei Watanabe; Olof Biström

doi:10.1649/0010-065X-76.1.115

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Kohei Watanabe,¹ Olof Biström²

¹Ishikawa Insect Museum, Inu–3, Yawata-machi Hakusan-shi, Ishikawa, JAPAN
²Finnish Museum of Natural History, Entomology Unit PO Box 17, FI–00014 University of Helsinki, FINLAND

Abstract

Hydrovatus onigiri Watanabe and Biström, new species is described from Japan. The new species is similar to Hydrovatus subtilis Sharp, 1882, but it is distinguishable from the latter by male antennomeres 4–6 being the broadest (rather than antennomeres 6–8), poorly developed male stridulatory apparatus, and an almost evenly curved penis apex. Hydrovatus onigiri, new species is the 20th species of the H. confertus species group, and 10th Hydrovatus Motschulsky species known from Japan.

Citation Download Citation

Kohei Watanabe and Olof Biström "A New Species of the Genus Hydrovatus Motschulsky (Coleoptera: Dytiscidae) from Japan," The Coleopterists Bulletin 76(1), 115-121, (18 March 2022). https://doi.org/10.1649/0010-065X-76.1.115

Received: 11 August 2021; Accepted: 13 January 2022; Published: 18 March 2022

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