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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 107, No. 2, 2012, pp. 178-185
Bioline Code: oc12026
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 107, No. 2, 2012, pp. 178-185

 en The phylogeny of Simulium (Chirostilbia) check for this species in other resources (Diptera: Simuliidae) and perspectives on the systematics of the genus in the Neotropical Region
Gil-Azevedo, Leonardo Henrique; Coscarón, Sixto & Maia-Herzog, Marilza

Abstract

Recently, knowledge of Neotropical Simuliidae has been accumulating quickly. However, information about supra-specific relationships is scarce and diagnoses of Simulium subgenera are unsatisfactory. To investigate the relationships among Simulium (Chirostilbia) check for this species in other resources species and test the subgenus monophyly, we performed a cladistic analysis. The ingroup included all species of this subgenus and the outgroup included representatives of the 17 species groups of Neotropical Simulium and three Holarctic species. The study was based on a data matrix with 31 terminal taxa and 45 morphological characteristics of adult, pupa and larva. The phylogenetic analysis under equal weights resulted in eight most-parsimonious trees (length = 178, consistency index = 34, retention index = 67). The monophyly of the S. (Chirostilbia) was not supported in our analysis. The Simulium subpallidum check for this species in other resources species group was closer to Simulium (Psilopelmia) check for this species in other resources and Simulium (Ectemnaspis) check for this species in other resources than to the Simulium pertinax check for this species in other resources species group. Additionally, we describe the three-dimensional shape of the terminalia of male and female of Simulium (Chirostilbia) for the first time and provide comments about the taxonomic problems involving some species of the subgenus: Simulium acarayense check for this species in other resources , Simulium papaveroi check for this species in other resources , S. pertinax, Simulium serranum check for this species in other resources , Simulium striginotum check for this species in other resources and S. subpallidum.

Keywords
black fly - Culicomorpha - cladistics - morphology - taxonomy

 
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