Simulium (Chirostilbia) brunnescens (Diptera: Simuliidae) - new species from the Brazilian cerrado, Manso Dam, state of Mato Grosso, Brazil

Marilza Maia-Herzog,Antonio Paulino A Luna-Dias,Ana Carolina Dos Santos Valente,Verônica Marchon-Silva,Leonardo Henrique Gil-Azevedo

doi:10.1590/s0074-02762012000500004

Marilza Maia-Herzog, Antonio Paulino A Luna-Dias + Show 3 more

Open Access

https://doi.org/10.1590/s0074-02762012000500004

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Abstract

A new species of Simuliidae, Simulium (Chirostilbia) brunnescens, was discovered at Chapada dos Guimarães, state of Mato Grosso, Brazil, and nearby municipalities (Paranatinga, Rosário do Oeste and Nobres). This species is described here based on the adults, pupae and larvae. This species is closely related to Simulium (C.) subpallidum Lutz, but could be differentiated in all stages: females, leg colour pattern and frontal dilatation size; males, gonostyle shape; pupae, number of gill filaments; larvae, body size and colour, postgenal cleft, ratio between antenna and stalk of labral fan.

Highlights

According to Adler and Crosskey (2011), three genera of Simuliidae occur in Brazil: Araucnephia Wygodzinsky & Coscarón, Lutzsimulium d’Andretta & d’Andretta (2 subgenera) and Simulium Latreille (8 subgenera)
In this paper we describe one additional species: Simulium (Chirostilbia) brunnescens sp. nov., based on adults, pupae and larvae
The adults of S. brunnescens sp. nov. are similar to the adults of S. subpallidum, but both species can be distinguished at the pupal stage

Summary

Introduction

According to Adler and Crosskey (2011), three genera of Simuliidae occur in Brazil: Araucnephia Wygodzinsky & Coscarón, Lutzsimulium d’Andretta & d’Andretta (2 subgenera) and Simulium Latreille (8 subgenera). The subgenus Simulium (Chirostilbia) is represented by 13 species, all of which are found in Brazil, including one economically important species, the pest Simulium pertinax Kollar. Six species in this subgenus are known from for the state of Mato Grosso (MT), Brazil (Simulium dekeyseri Shelley & Py-Daniel, Simulium friedlanderi Py-Daniel, S. pertinax, Simulium serranum Coscarón, Simulium spinibranchium Lutz and Simulium subpallidum Lutz). In this paper we describe one additional species: Simulium (Chirostilbia) brunnescens sp. In this paper we describe one additional species: Simulium (Chirostilbia) brunnescens sp. nov., based on adults, pupae and larvae

Methods

Conclusion