Abstract

OLIVA, Adriana. Distribution of Berosini (Coleoptera: Hydrophilidae) in South America. Rev. Soc. Entomol. Argent. [online]. 2007, vol.66, n.3-4, pp.47-56. ISSN 0373-5680.

Distributional data of Berosini (Coleoptera: Hydrophilidae) from previous publications and from new material examined are exposed. Few species have a strictly Neotropical distribution; most species form South America are not found in Central America and vice-versa. Many species of Berosus and Derallus are distributed along the main river basins, and have a certain influence of latitude. The species of Hemiosus are located only on sandy substrates and seem to select particle size. Mountain species have moderately extensive distributions while those that prefer fine sand have restricted ones. These distributions are found both along the upper part of the larger basins (Parano- Platense, Amazonian, Orinoco) and along three systems of secondary importance: Desaguadero-Colorado in Argentina, Sao Francisco in Brazil and Essequibo- Oyapok in the Guyana area.

Keywords : Hydrophilidae; Berosini; Neotropical fauna.

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