Abstract

RUEDA MARTIN, Paola A.. Morphology and biology of the immature stages of Marilia cinerea and M. elongata, with redescriptions of adult male of M. cinerea (Trichoptera: Odontoceridae). Rev. Soc. Entomol. Argent. [online]. 2008, vol.67, n.1-2, pp.11-20. ISSN 0373-5680.

The Trichoptera fauna from Las Yungas from northwestern Argentina and southern Bolivia is poorly known. There are 30 Neotropical species in the genus MariliaMüller, but only in four the adults have been associated with the immature stages in spite of their abundance and ecological importance. In this study the male genitalia of M. cinerea Navás is re-described and illustrated to complete the original description. The immature stages of M. cinerea and M. elongata Martynov were associated using the metamorphotype method. Illustrations, descriptions and biological observations are included. M. cinerea is a new record for Bolivia and new localities in northwestern Argentina. M. elongata and M. flexulosa Ulmer were registered for the first time for northwestern Argentina.

Keywords : Marilia; Metamorphotype; Biology; Taxonomy; Neotropics.

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