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Memórias do Instituto Oswaldo Cruz
Print version ISSN 0074-0276
MAIA-HERZOG, Marilza et al. Simulium (Chirostilbia) brunnescens (Diptera: Simuliidae) - new species from the Brazilian cerrado, Manso Dam, state of Mato Grosso, Brazil. Mem. Inst. Oswaldo Cruz [online]. 2012, vol.107, n.5, pp.591-597. ISSN 0074-0276. http://dx.doi.org/10.1590/S0074-02762012000500004.
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.
Keywords : Insecta; Culicomorpha; taxonomy; Neotropical region; impacted area.