A synopsis of the South American Hydrovatus (Coleoptera: Dytiscidae: Hydroporinae), with notes on habitat and distribution, and a key to species Sinopsis de los Hydrovatus sudamericanos (Coleoptera: Dytiscidae: Hydroporinae), con notas sobre hábitat y distribución, y una clave para las especies

We revised the South American members of the genus Hydrovatus Motschulsky. Each of the three recognized species is diagnosed, with emphasis on diagnostic characters. A key summarizing the main differences is provided. To identify South American specimens of H. caraibus Sharp, they were compared with...

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Bibliographic Details
Main Authors: Edgardo R. Trémouilles, Mariano C. Michat, Patricia L. M. Torres
Format: Article
Language:English
Published: Sociedad Entomológica Argentina 2005-07-01
Series:Revista de la Sociedad Entomológica Argentina
Subjects:
Online Access:http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802005000100012
Description
Summary:We revised the South American members of the genus Hydrovatus Motschulsky. Each of the three recognized species is diagnosed, with emphasis on diagnostic characters. A key summarizing the main differences is provided. To identify South American specimens of H. caraibus Sharp, they were compared with Central American specimens, including type material. Based on the material examined, H. caraibus is a species broadly distributed in Central and South America, with representatives of different areas separated by minor differences. The geographical distributions of the three species are considerably enlarged: H. crassulus Sharp and H. turbinatus Zimmermann are recorded for the first time from Paraguay, and H. caraibus is recorded for the first time from Argentina and Nicaragua. Bionomical information of the species is presented.<br>Se estudiaron los representantes sudamericanos del género Hydrovatus Motschulsky. Se diagnostica cada una de las tres especies conocidas, enfatizando el reconocimiento de caracteres valiosos para su identificación; las principales diferencias se resumen en una clave. Para identificar los ejemplares sudamericanos de H. caraibus Sharp, se los comparó con especímenes de América Central, incluyendo material tipo. En base al material examinado, H. caraibus se encuentra ampliamente distribuida en America Central y del Sur, con representantes de diferentes áreas separados por diferencias menores. Las distribuciones geográficas de las tres especies se amplían considerablemente: H. crassulus Sharp y H. turbinatus Zimmermann se citan por primera vez de Paraguay, y H. caraibus se cita por primera vez de Argentina y Nicaragua. Se presenta información bionómica de las especies.
ISSN:0373-5680
1851-7471