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New species and records of Beardius Reiss et Sublette (Diptera : Chironomidae)

Published online by Cambridge University Press:  01 February 2009

T. Andersen  and
O. A. Sæther
T. Andersen
Affiliation:
Museum of Zoology, University of Bergen, Musépl. 3, N-5007 Bergen, Norway
O. A. Sæther
Affiliation:
Museum of Zoology, University of Bergen, Musépl. 3, N-5007 Bergen, Norway
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Abstract

The genus Beardius Reiss et Sublette is emended based on the inclusion of three new species, B. aciculatus, B. lingulatus and B. triangulatus netted along small rivers in the Guanacaste province in NW Costa Rica. B. aciculatus and B. parcus Reiss et Sublette also is present in samples from Vera Cruz, Mexico. A new record of B. parcus from Mato Grosso, Brazil, is given. The female of the genus is described for the first time based on B. parcus Reiss et Sublette. The genus is shown to be closely related to Paratendipes Kieffer. A cladogram is erected showing three species pair with B. aciculatus and B. parcus as the sister group of the remaining. A key to male imagines is given.

Keywords

dipterachironomidaesystematicsbeardiusCosta RicaMexicodipterachironomidaesystématiquebeardiusCosta RicaMexico
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 32 , Issue 1 , March 1996 , pp. 33 - 44
Copyright
© Université Paul Sabatier, 1996

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