Chironomidae (Diptera) Larvae in streams of Parque Estadual de Campos do Jordão, São Paulo state, Brazil

SURIANO^{1, 2,} M.T. & FONSECA-GESSNER², A.A.

¹ Programa de Pós-Graduação em Ecologia e Recursos Naturais da Universidade Federal de São Carlos – Rod. Washington Luiz Km 235, C. P. 676, CEP 13565-905, São Carlos – SP, Brasil. e-mail: pmts@iris.ufscar.br

² Universidade Federal de São Carlos, Departamento de Hidrobiologia, Laboratório de Ecologia de Insetos Aquáticos – C.P. 676, CEP 13565-905, São Carlos – SP, Brasil. e-mail:gessner@power.ufscar.br

ABSTRACT: The distribution of the Chironomidae larvae was analyzed in streams of Parque Estadual de Campos do Jordão, in Campos do Jordão-Brazil. The samples were collected with a Surber sampler in six stations. Forty-three taxa were identified belonging to the subfamilies Chironominae, Orthocladiinae and Tanypodinae. Analyses indicated aff. Pseudochironomus sp1 as the most abundant genus, followed by Corynoneura, aff. Omisus and Thienemanniella. The highest taxa richness was found in Campo do Meio stream whereas the highest diversity, similarity and evenness indexes values were found in the Galharada stream and its tributary. Multivariate Correspondence Analyses revealed that the dominant entomofauna was associated with the sampling sites, and their ordination was correlated with possible anthropic influences.

Key-words: Chironomidae, Diptera, larvae, aquatic insects, streams.