Resumo

OLIVA, Adriana. Redescription of Derallus strigipennis Orchymont, 1940 (Coleoptera: Hydrophilidae), new records and a key to species of Derallus Sharp 1882. Rev. Mus. Argent. Cienc. Nat. [online]. 2010, vol.12, n.1, pp.91-97. ISSN 1853-0400.

The type of Derallus strigipennis Orchymont, 1940 is redescribed and figured. New records are given for three other species of the genus: D.ambitus Orchymont, 1940 from Ecuador, D.argutus Orchymont, 1940 from Argentina and Bolivia, and D. intermedius Oliva 1995 from Bolivia and Guyana. A key to the described species is given.

Palavras-chave : Aquatic Coleoptera; Hydrophilidae; Neotropical fauna.

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