Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 4 de 4
Filter
Add filters








Year range
1.
Mem. Inst. Oswaldo Cruz ; 107(2): 178-185, Mar. 2012. ilus, tab
Article in English | LILACS | ID: lil-617062

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.


Subject(s)
Animals , Female , Male , Phylogeny , Simuliidae/classification , Simuliidae/anatomy & histology , Simuliidae/genetics
2.
Acta amaz ; 35(4): 463-472, out.-dez. 2005. ilus, tab
Article in Portuguese | LILACS | ID: lil-420522

ABSTRACT

É acrescentado um novo caráter pupal para a espécie T. hirtipupa (Lutz,1910). É evidenciada a existência de dentes no cibário da fêmea de T. guianense (Wise,1911), principal espécie envolvida na transmissão da filaria Onchocerca volvulus (Leuckart,1893) no foco da região amazônica. É proposta uma nova relação para os artículos antenais da larva de T. guianense. É descrita uma nova espécie para o gênero Thyrsopelma Enderlein,1934, T. jeteri sp.n., proveniente da bacia hidrográfica do rio Uruguai, no Estado do Rio Grande do Sul. São apresentados os parâmetros físico-químicos do criadouro de onde provem o material tipo. É apresentada uma chave para diferenciação das pupas das espécies constantes neste gênero.


Subject(s)
Simuliidae , Classification
3.
Rev. saúde pública ; 23(4): 313-21, ago. 1989. ilus
Article in Spanish | LILACS | ID: lil-98000

ABSTRACT

Tres especies nuevas son descriptas: Simulium (Hemicnetha) crisatalinum proveniente de Roraima, Brasil (hembra, macho, pupa y larva; pertenciente al el grupo brachycladum); (Grenieriella) wygodzinskyorum de Junin, Perú (hembra, macho, pupa y larva; pertenciente al el grupo lahillei); (Grenieriella) sumapazense proveniente de Cundinamarca, Colombia y descripta con base en la pupa y parte del macho


Subject(s)
Animals , Male , Female , Simuliidae/classification
4.
Mem. Inst. Oswaldo Cruz ; 84(supl.4): 125-128, 1989. ilus
Article in English | LILACS | ID: lil-623858

ABSTRACT

Female and male of Dasybasis diaguita n. sp. from high area of NW of Argentina is described and illustrated.


Subject(s)
Animals , Tropical Climate , Diptera/genetics , Dasyproctidae/classification , Argentina
SELECTION OF CITATIONS
SEARCH DETAIL