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Revista de la Sociedad Entomológica Argentina
Print version ISSN 0373-5680On-line version ISSN 1851-7471
Abstract
BRAVO, Walter R. and ANGRISANO, Elisa B.. Description of the preimaginal stages of four genera of Neotropical Hydrobiosidae (Trichoptera). Rev. Soc. Entomol. Argent. [online]. 2004, vol.63, n.3-4, pp.97-105. ISSN 0373-5680.
The larvae and pupae of Microchorema extensum Schmid, and Neochorema sinuatum Schmid, are described; larvae not identified, denominated provisorily Genus X and Genus Y are described too. The larva of M. extensum are distinguished by: femur I elonged with ventro-distal process thin, tibia and tarso I partially fused between them; prosternum with a central quadrangular plate and two elonged lateral ones. Pupa has relatively short jaws and posterior dorsal plates III cleaved. The larvae of N. sinuatum have prosternum with three plates, a big central plate and two lateral in anterior position and femur I width in the distal edge, without ventro-distal projection; the pupa don't have dorsal plate on segment II. The larva denominated Genus X have prosternum with a big central plate and anterior femur elonged with ventro-distal process thin while the larva provisorily named Genus Y have prothoracic sternum with three sclerites; two trhee point latero-anterior and a posterior with "U" shape; elongated anterior femur with broad basodistal process. Neochorema Schmid is named for the first time for Argentina.
Keywords : Larva; Pupa; Morphology; Neotropical; Hydrobiosidae; Trichoptera.