Please use this identifier to cite or link to this item:
https://www.arca.fiocruz.br/handle/icict/27496
Type
ArticleCopyright
Open access
Collections
- IOC - Artigos de Periódicos [12507]
Metadata
Show full item record
THE PHYLOGENY OF SIMULIUM (CHIROSTILBIA) (DIPTERA: SIMULIIDAE) AND PERSPECTIVES ON THE SYSTEMATICS OF THE GENUS IN THE NEOTROPICAL REGION
Affilliation
Universidade do Estado do Rio de Janeiro. Instituto de Biologia. Departamento de Zoologia. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Laboratório de Simulídeos e Omcocercose. Rio de Janeiro, RJ, Brasil.
Facultad de Ciencias Naturales y Museo, La Plata.Buenos Aires, Argentina.
Fundação Oswaldo Cruz. Laboratório de Simulídeos e Omcocercose. Rio de Janeiro, RJ, Brasil.
Facultad de Ciencias Naturales y Museo, La Plata.Buenos Aires, Argentina.
Fundação Oswaldo Cruz. Laboratório de Simulídeos e Omcocercose. Rio de Janeiro, RJ, Brasil.
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) 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 species group was
closer to Simulium (Psilopelmia) and Simulium (Ectemnaspis) than to the Simulium pertinax 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, Simulium papaveroi, S. pertinax, Simulium serranum, Simulium striginotum and S. subpallidum.
Share