New records of araneid spiders (Araneae: Araneidae) in the Colombian Amazon Region

Pinzón, Jaime; Benavides, Ligia R.; Sabogal, Alexander

doi:10.11646/zootaxa.2626.1.2

Cited by 4 publications

(1 citation statement)

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“…Araneidae is one of the most diverse spider families currently including 3125 species in 173 genera (World Spider Catalog, 2018). Araneids occur in all continents except the polar regions, and are abundant and diverse in the Neotropical region (Pinzón et al 2010;, which concentrates ca. 40% of its known richness.…”

Section: Araneidae Phylogenymentioning

confidence: 99%

Systematics and evolution of the orb-weaving spider genus Wagneriana F.O. Pickard-Cambridge, 1904 (Araneae; Araneidae)

Garcia¹

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Although several Neotropical genera of the family Araneidae were revised using modern taxonomic standards, species-level phylogenies and phylogenetic relationships among genera remains poorly understood. This study was designed to test the monophyly of the Neotropical araneid genus Wagneriana F. O. Pickard-Cambridge, 1904 and its phylogenetic placement by conducting a total evidence analysis. The combined matrix included 167 phenotypic characters and approximately 4,800 base pairs generated for three mitochondrial and six nuclear loci. The dataset consists of 82 terminals representing 100% of the described diversity of the genus Wagneriana (37 species after taxonomic changes) plus five undescribed species and 33 outgroup terminals of 31 species. To evaluate the phylogenetic significance of the phenotypic evidence, comparisons between total evidence analyses and molecular-only analyses were conducted. In addition, to evaluate the effect of the alignment and optimality criteria, multiple analytical approaches were conducted using the programs POY, TNT, RAxML, GARLI, IQtree and MrBayes. In general, the results obtained across the different approaches showed congruence. In all the cases, W. carimagua Levi, 1991 and W. uropygialis Levi, 1991 were nested within the genera Parawixia F. O. Pickard-Cambridge, 1904 and Alpaida O. Pickard-Cambridge, 1889, respectively, and the remaining nominal species of the genus Wagneriana fell into three main clades, neither of which formed a pair of sister taxa. However, sister-group relationships of the main clades, as well as, its internal relationships were strongly influenced by the employed analytical approach. The election of alignment criteria had comparable topological effects to that of optimality criteria. Within the maximum likelihood context, the program choice affected the maximization of the likelihood score and the tree topology. Although phenotypic evidence comprised only 2.80-3.05% of the total evidence matrices, it had impact in support values and topology. In general, the inclusion of phenotypic evidence, irrespective of the optimality criterion used, increased the support values of several ingroup and outgroup clades. Furthermore, the monophyly of several clades was only recovered with the addition of phenotypic characters. In accordance with the phylogenetic results, a new araneid genus is proposed and Paraverrucosa Mello-Leitão, 1939 is resurrected. Moreover, five Wagneriana species are newly described and complementary descriptions for seven species are provided. This study presents the first total evidence phylogenetic analysis of a Neotropical Araneidae genus and discusses the impact of the inclusion of phenotypic evidence and the choice of alignment and optimality criteria in phylogenetic analyses.

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Section: Araneidae Phylogenymentioning

confidence: 99%

Systematics and evolution of the orb-weaving spider genus Wagneriana F.O. Pickard-Cambridge, 1904 (Araneae; Araneidae)

Garcia¹

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Araneae (spiders) of South America: a synopsis of current knowledge

Dupérré

2022

New Zealand Journal of Zoology

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New records and geographical distribution of ctenid spiders (Araneae: Ctenidae) in Colombia

Hazzi¹,

Valderrama-Ardila²,

Brescovit³

et al. 2013

Zootaxa

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This study provides new records, geographical distribution extensions and a checklist of the current ctenids species in Colombia based on the review of four arachnological collections and published literature. A total of 15 new records for Ctenidae in Colombia are reported; nine of these species are new records for the country and the distribution of the remaining six is expanded. The genus Centroctenus Mello-Leitão, 1929 (C. ocelliventer Strand, 1909) is recorded for first time in Colombia and Cupiennius coccineus (F.O. Pickard-Cambridge, 1901) for South America. Due to the strategic geographic position of Colombia, which is a transition zone between Southern and Central American biotas, species inventories in different localities are important to fill distributional gaps. The number of known species of ctenids in Colombia is increased from 16 to 25 and these data will be useful for future studies in taxonomy, systematics and biogeography of this family.

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New records of araneid spiders (Araneae: Araneidae) in the Colombian Amazon Region

Cited by 4 publications

References 0 publications

Systematics and evolution of the orb-weaving spider genus Wagneriana F.O. Pickard-Cambridge, 1904 (Araneae; Araneidae)

Systematics and evolution of the orb-weaving spider genus Wagneriana F.O. Pickard-Cambridge, 1904 (Araneae; Araneidae)

Araneae (spiders) of South America: a synopsis of current knowledge

New records and geographical distribution of ctenid spiders (Araneae: Ctenidae) in Colombia

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