Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)

A cladistic analysis of <i>Simulium (Trichodagmia) sensu</i> Crosskey and Howard, using 34 morphological characters of larvae (6 characters), pupa (5) and adults (23), yields nine most parsimonious trees under equal weights (length 101 steps CI 0.49 RI 0.73). Successive weighting based o...

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Autores principales: Miranda Esquivel, Daniel Rafael, Coscarón, Sixto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Ciencias Naturales
Equal weights
Implicit weights
Monophyly
Neotropical simuliids
Successive weighting
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83517
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83517
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Equal weights
Implicit weights
Monophyly
Neotropical simuliids
Successive weighting
spellingShingle Ciencias Naturales
Equal weights
Implicit weights
Monophyly
Neotropical simuliids
Successive weighting
Miranda Esquivel, Daniel Rafael
Coscarón, Sixto
Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
topic_facet Ciencias Naturales
Equal weights
Implicit weights
Monophyly
Neotropical simuliids
Successive weighting
description A cladistic analysis of <i>Simulium (Trichodagmia) sensu</i> Crosskey and Howard, using 34 morphological characters of larvae (6 characters), pupa (5) and adults (23), yields nine most parsimonious trees under equal weights (length 101 steps CI 0.49 RI 0.73). Successive weighting based on the maximal rescaled consistency index preferred one of the nine (31.37 steps CI 0.62 RI 0.87 total fit<SUB>con3</SUB> = 235.8), which was also one of two trees found under implicit weights with concavity values of 3-6. The cladogram justifies the recognition of two subgenera. <i>Simulium (Trichodagmia) sensu stricto</i> (containing <i>S. muiscorum, sumapazense, S. wygodzinskyorum, S. nigrimanum, S. chalcocoma, S. huairayacu</i> and <i>S. lahillei</i>) is supported by the branchial tip sclerotization and the presence of cibarial teeth, larval body tegument covered with lanceolate hairs, female with simple claw, and gonapophysis size. <i>Simulium (Thyrsopelma)</i> (containing <i>S. scutistriatum, S. hirtipupa, S. orbitale, S. guianense, S. perplexum</i> and <i>S. itaunense</i>) is supported by the hypostomial teeth.
format Articulo
Articulo
author Miranda Esquivel, Daniel Rafael
Coscarón, Sixto
author_facet Miranda Esquivel, Daniel Rafael
Coscarón, Sixto
author_sort Miranda Esquivel, Daniel Rafael
title Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
title_short Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
title_full Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
title_fullStr Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
title_full_unstemmed Cladistic analysis of Simulium (Trichodagmia) and Simulium (Thyrsopelma) (Diptera: Simuliidae)
title_sort cladistic analysis of simulium (trichodagmia) and simulium (thyrsopelma) (diptera: simuliidae)
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/83517
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AT coscaronsixto cladisticanalysisofsimuliumtrichodagmiaandsimuliumthyrsopelmadipterasimuliidae
bdutipo_str Repositorios
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