Nopyllus, a new South American Drassodinae spider genus (Araneae, Gnaphosidae)

Ott, Ricardo

doi:10.1590/1678-476620141042252261

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…Several works have brought substantial contributions toward solving the taxonomy of Gnaphosidae, especially regarding the New World fauna (Platnick and Shadab, , , ; Platnick, ; Ferreira et al., ; Ott, , ; Ott et al., ; Jorge et al., ; Azevedo et al., ), and therefore many genera are well delimited. However, the phylogenetic relationships among gnaphosid genera remain obscure.…”

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confidence: 99%

Systematics and evolution of ground spiders revisited (Araneae, Dionycha, Gnaphosidae)

2017

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Gnaphosidae Pocock are a very diverse spider family with remarkable spinning organ morphology. Although the family has received intense taxonomic attention in recent years, its intergeneric relationships remain obscure. A phylogenetic analysis of Gnaphosidae genera was performed to untangle the evolutionary history of the family. A matrix of 324 morphological characters, scored for 71 gnaphosid genera and 29 outgroup taxa, was analysed through parsimony and Bayesian phylogenetic inference. Gnaphosidae are not recovered as a monophyletic group, neither were most of the previously proposed intrafamiliar groupings. In accordance with the phylogenetic results obtained, Vectius Simon and Hemicloea Thorell are transferred to Trochanteriidae, and Xenoplectus Schiapelli & Gerschman de Pikelin to Liocranidae. Micaria Westring, Nauhea Forster and Verita Ram ırez & Grismado (and some related genera) are probably not gnaphosids, although their phylogenetic placement is uncertain. Gnaphosidae s.s. are defined as spiders with enlarged piriform gland spigots, longer and wider than the major ampullate gland spigots. Within Gnaphosidae s.s., well-supported clades allow the redefinition, on the basis of quantitative phylogenetic evidence, of Gnaphosinae Pocock, Zelotinae Platnick, Herpyllinae Platnick, Drassodinae Simon, Prodidominae Simon rank res. and the newly proposed Leptodrassinae subfam. nov. Many genera are not assigned to subfamily given their poorly supported and unstable relationships. The homology and evolution of structures such as the claw tuft clasper, the spinning organs and the modification of cheliceral promargin are discussed.

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Systematics and evolution of ground spiders revisited (Araneae, Dionycha, Gnaphosidae)

2017

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“…The recent synopsis of gnaphosid genera by Murphy (2007) expedited the discovery of some of these endemic genera from southern Brazil (e.g., Ott 2012Ott , 2014Ott & Brescovit 2012), and allowed to appreciate the regional diversity in a global perspective. Of the 14 groups of genera proposed by Murphy, only six (Zelotes, Laronius, Herpyllus, Echemus, Leptodrassex and Hemicloea groups) are well represented in South America and make the bulk of gnaphosid diversity in the region; of the remaining groups, eight are not represented in South America (except by a few, probably misplaced species of Drassodes Westring).…”

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confidence: 99%

Description of the spider Verita williamsi, a new genus and species from Santa Fe, Argentina (Araneae, Gnaphosidae)

Ramı́rez

Grismado

2014

MACN

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Verita williamsi, new genus and species (Araneae, Gnaphosidae) is described from specimens recently collected in Northern Santa Fe Province, Argentina. The peculiar combination of having only two piriform gland spigots, aligned setae on the leg scopulae, and anterior lateral spinnerets not widely spaced suggests that the species is probably a close relative of Micaria and some of the small representatives of the Anzacia group of genera. It differs from all of them by having three teeth in the cheliceral retromargin and lacking iridescent squamose scales in the abdomen.Key words: Ground spiders, taxonomy, Argentina, spinneret morphology.Resumen: Verita williamsi, nuevo género y especie (Araneae, Gnaphosidae) se describe a partir de especímenes colectados recientemente en el norte de la provincia de Santa Fe, Argentina. Estas arañas muestran una peculiar combinación de caracteres, solamente dos fúsulas de glándulas piriformes, setas alineadas en la escópula de las patas y las hileras anteriores no muy apartadas entre ellas, que sugieren que la especie está cercanamente emparentada a Micaria y a algunos de los representantes pequeños del grupo de géneros Anzacia. Se distingue de todos ellos por tener tres dientes en el retromargen queliceral y por carecer de setas escamosas iridiscentes en el abdomen.Palabras clave: Arañas del suelo, taxonomía, Argentina, morfología de hileras.

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Phylogenetic analysis of the subfamily Prodidominae (Arachnida: Araneae: Gnaphosidae)

Rodrigues

Rheims

2020

Zoological Journal of the Linnean Society

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Prodidominae was recently re-established as a subfamily of Gnaphosidae, comprising 316 species placed in 33 genera. In this study, we conduct a cladistic analysis including 59 species of Prodidominae and 32 outgroup species. The matrix is composed of 291 morphological characters and the data are analysed under the parsimony criterion, using differing weighting regimes. Prodidominae is not recovered as monophyletic, because Anagrina did not arise within the subfamily. Cryptotoerithus, Molycria, Myandra, Nomindra, Wesmaldra and Wydundra arise to form a clade. Thus, we re-establish Molycriinae as a distinct subfamily in Gnaphosidae, sister to Prodidominae. We redefine the limits of Prodidominae to include the genera Austrodomus, Brasilomma, Caudalia, Chileomma, Chileuma, Chilongius, Eleleis, Indiani, Katumbea, Lygromma, Lygrommatoides, Moreno, Namundra, Neozimiris, Nopyllus, Paracymbiomma, Plutonodomus, Prodidomus, Purcelliana, Theuma, Theumella, Tivodrassus, Tricongius, Zimirina and Zimiris. Species of these genera share the presence of anterior lateral spinnerets with pyriform gland spigots associated with patches of long setae and the presence of a large protrusion between coxae IV with erect setae and unsclerotized margins. In addition, we propose three new synonymies: Oltacloea as a junior synonym of Tricongius, and Prodida as junior synonym of Prodidomus. Lygromma ybyguara is transferred to Tricongius.

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Nopyllus, a new South American Drassodinae spider genus (Araneae, Gnaphosidae)

Cited by 4 publications

References 2 publications

Systematics and evolution of ground spiders revisited (Araneae, Dionycha, Gnaphosidae)

Systematics and evolution of ground spiders revisited (Araneae, Dionycha, Gnaphosidae)

Description of the spider Verita williamsi, a new genus and species from Santa Fe, Argentina (Araneae, Gnaphosidae)

Phylogenetic analysis of the subfamily Prodidominae (Arachnida: Araneae: Gnaphosidae)

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