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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Phylogeny of Sicariidae spiders (Araneae: Haplogynae), with a monograph on Neotropical Sicarius

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Magalhaes, Ivan L. F. ; Brescovit, Antonio D. ; Santos, Adalberto J.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Zoological Journal of the Linnean Society; v. 179, n. 4, p. 767-864, APR 1 2017.
Citações Web of Science: 10

Sicariids are an infamous spider family containing two genera: the poorly known Sicarius Walckenaer and the medically important Loxosceles Heineken \& Lowe. We present the first broad survey of the morphology of the family from a phylogenetic perspective in order to resolve its relationships. We scored morphological, behavioural and venom feature data for 38 taxa, including New and Old World species of both Sicarius and Loxosceles and three outgroups. Our results point to the monophyly of Sicariidae and its two genera as currently delimited, with the identification of novel synapomorphies for all of them. We present evidence of a group of `true' Loxosceles composed of all members of the genus except those from the spinulosa species group. Sicarius have a very interesting phylogenetic structure, with species from the Americas and Africa forming reciprocally monophyletic groups. Thus, we resurrect Hexophthalma Karsch to accommodate African Sicariinae species. We discuss the evolution of venom proteins, spinning organs and cryptic appearance in Sicariidae. We delimit Sicarius to include only the 20 Neotropical species, and present a taxonomic revision of the genus. We redescribe nine previously known species, elevate one subspecies to species, and describe six new species from Argentina, Bolivia, Brazil and Peru. Sicarius levii sp. nov., from Argentina, is probably the largest known haplogyne spider in both body length and mass. Six specific names are considered junior synonyms of older names. All these species are illustrated and have their distributions mapped. We present an interactive key for identifying Sicarius species. (C) 2017 The Linnean Society of London, Zoological Journal of the Linnean Society, 2017 (AU)

Processo FAPESP: 11/50689-0 - Sistemática de aranhas haplóginas neotropicais (Arachnida, Araneae)
Beneficiário:Antonio Domingos Brescovit
Linha de fomento: Auxílio à Pesquisa - Temático