Phylogenetic relationships of the comb-footed spider subfamily Spintharinae (Araneae, Araneoidea, Theridiidae), with generic diagnoses and a key to the genera


Por: Durán-Barrón C.G., Rosas M.V., Contreras-Ramos A.

Publicada: 30 may 2013
Resumen:
The monophyly of Spintharinae is supported in agreement with previous analysis of Theridiidae by Agnarsson and Arnedo et al. We study the relationships of the genera within Spintharinae. Fourteen species in the genera Chrosiothes, Episinus, Spintharus, Stemmops, and Thwaitesia constituted the ingroup, while five species from the genera Euryopis and Dipoena (Hadrotarsinae), as well as Latrodectus and Steatoda (Latrodectinae), served as outgroup taxa. The character matrix included 49 morphological characters. Parsimony analyses using several character weighting strategies supported the monophyly of Spintharinae with Stemmops as sister to a clade that includes the remaining ingroup taxa. Chrosiothes emerged as sister to Episinus + Spintharus + Thwaitesia which formed a polytomy. The equally weighted, successive weighted, and preferred implied weight topologies, were all logically consistent. A key to the genera of Spintharinae and diagnoses for each genus are given.

Filiaciones:
Durán-Barrón C.G.:
 Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Mexico City 04510, DF, Mexico

Rosas M.V.:
 Instituto Profesional de la Región Sur, Campus Sur, Universidad Autónoma del Estado de Morelos, Jojutla, Morelos 62900, Mexico

Contreras-Ramos A.:
 Univ Nacl Autonoma Mexico, Inst Biol, Dept Zool, Mexico City 04510, DF, Mexico
ISSN: 11755326
Editorial
MAGNOLIA PRESS, PO BOX 41383, AUCKLAND, ST LUKES 1030, NEW ZEALAND, Nueva Zelanda
Tipo de documento: Article
Volumen: 3666 Número: 2
Páginas: 171-193
WOS Id: 000327406800004
ID de PubMed: 26217844