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New species of the genus Apobaetis Day (Ephemeroptera: Baetidae)from Bolivia and Argentina

Published online by Cambridge University Press:  15 February 2009

C. Nieto
C. Nieto*
Affiliation:
CONICET-INSUE. Facultad de Ciencias Naturales e IML, Miguel Lillo 205, S. M. Tucumán (4000), Tucumán, Argentina.
*
macarolina_nieto@yahoo.com.ar
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Abstract

Apobaetis insolitus n. sp., Apobaetis kallawaya n. sp. and Apobaetis niger n. sp. (Ephemeroptera: Baetidae) are described from nymphs collected in Argentina and Bolivia. Apobaetis insolitus can be distinguished by the labrum with anterior margin with a U-shaped emargination, segment II of labial palpi with triangular apically rounded distomedial projection. Apobaetis kallawaya can be distinguished by segment II of labial palpi with triangular, slender and apically pointed distomedial projection, the posterior margins of the abdominal terga with blunt spines and paraprocts with blunt spines apically. Apobaetis niger can be distinguished by the anterior margin of labrum with medial lobe and segment II of labial palpi with triangular apically rounded distomedial projection. The three new species possess tarsal claws with two rows of denticles. A key to all species known from nymphs is presented.

Keywords

EphemeropteraBaetidaeApobaetisArgentinaBolivia
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 42 , Issue 3 , September 2006 , pp. 189 - 196
Copyright
© Université Paul Sabatier, 2006

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