Descripción de los estados preimaginales de cuatro géneros de Hydrobiosidae (Trichoptera) Neotropicales

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...

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Bibliographic Details
Published in:Revista de la Sociedad Entomológica Argentina 2004-01, Vol.63 (3-4)
Main Authors: BRAVO, Walter R, ANGRISANO, Elisa B
Format: Article
Language:Spanish
Subjects:
Aquatic insects
Developmental stages
Femur
Hydrobiosidae
Larvae
Microchorema extensum
Neochorema sinuatum
Pupae
Sclerites
Sternum
Tibia
Trichoptera
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Description
Summary: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 three 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.
ISSN:0373-5680
1851-7471