On the spider genus Weintrauboa (Araneae, Pimoidae), with a description of a new species from China and comments on its phylogenetic relationships

Hormiga, Gustavo

doi:10.11646/zootaxa.1814.1.1

Cited by 9 publications

(8 citation statements)

References 20 publications

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“…(). The morphology of Sinopimoa bicolor , the only member of the family Sinopimoidae (Li and Wunderlich, ), as described so far, is congruent with that of Linyphiidae (Hormiga, ) and thus we consider Sinopimoidae a junior synonym of the family Linyphiidae ( syn. n. ) .…”

Section: Discussionmentioning

confidence: 53%

“…Although we could not include in our analysis Sinopimoa bicolor Li and Wunderlich, , the sole member of Sinopimoidae, we formalize here the hypothesis of Hormiga () stating that Sinopimoa is a member of the family Linyphiidae. As detailed by Hormiga (, p. 4), the study of Li and Wunderlich () is missing essential morphological data for a convincing phylogenetic justification of a new family. As those authors point out, two characters support membership of Sinopimoa in the “linyphioid” clade (Pimoidae + Linyphiidae): cheliceral stridulatory striae and patella‐tibia leg autospasy.…”

Section: Taxonomymentioning

confidence: 69%

“…Such a hypothesis is in conflict with the results of morphological analyses (e.g. Hormiga, 2008;Hormiga and Tu, 2008). A recent interpretation of the male palp sclerites of Stemonyphantes (Gavish-Regev et al, 2013) suggests that in this linyphiid genus the tegular sclerites could be homologues of the conductor and median apophysis, but supported a sister group relationship of Weintrauboa and Pimoa (and thus, Pimoidae monophyly) and of Pimoidae plus Linyphiidae.…”

Section: Taxonomymentioning

confidence: 86%

“…Type species: Sinopimoa bicolor Li and Wunderlich, 2008 Comments. Although we could not include in our analysis Sinopimoa bicolor Li and Wunderlich, 2008, the sole member of Sinopimoidae, we formalize here the hypothesis of Hormiga (2008) stating that Sinopimoa is a member of the family Linyphiidae. As detailed by Hormiga (2008, p. 4), the study of Li and Wunderlich (2008) is missing essential morphological data for a convincing phylogenetic justification of a new family.…”

Section: Taxonomymentioning

confidence: 88%

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Rounding up the usual suspects: a standard target‐gene approach for resolving the interfamilial phylogenetic relationships of ecribellate orb‐weaving spiders with a new family‐rank classification (Araneae, Araneoidea)

et al. 2016

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We test the limits of the spider superfamily Araneoidea and reconstruct its interfamilial relationships using standard molecular markers. The taxon sample (363 terminals) comprises for the first time representatives of all araneoid families, including the first molecular data of the family Synaphridae. We use the resulting phylogenetic framework to study web evolution in araneoids. Araneoidea is monophyletic and sister to Nicodamoidea rank. n. Orbiculariae are not monophyletic and also include the RTA clade, Oecobiidae and Hersiliidae. Deinopoidea is paraphyletic with respect to a lineage that includes the RTA clade, Hersiliidae and Oecobiidae. The cribellate orb‐weaving family Uloboridae is monophyletic and is sister group to a lineage that includes the RTA Clade, Hersiliidae and Oecobiidae. The monophyly of most Araneoidea families is well supported, with a few exceptions. Anapidae includes holarchaeids but the family remains diphyletic even if Holarchaea is considered an anapid. The orb‐web is ancient, having evolved by the early Jurassic; a single origin of the orb with multiple “losses” is implied by our analyses. By the late Jurassic, the orb‐web had already been transformed into different architectures, but the ancestors of the RTA clade probably built orb‐webs. We also find further support for a single origin of the cribellum and multiple independent losses. The following taxonomic and nomenclatural changes are proposed: the cribellate and ecribellate nicodamids are grouped in the superfamily Nicodamoidea rank n. (Megadictynidae rank res. and Nicodamidae stat. n.). Araneoidea includes 17 families with the following changes: Araneidae is re‐circumscribed to include nephilines, Nephilinae rank res., Arkyidae rank n., Physoglenidae rank n., Synotaxidae is limited to the genus Synotaxus, Pararchaeidae is a junior synonym of Malkaridae (syn. n.), Holarchaeidae of Anapidae (syn. n.) and Sinopimoidae of Linyphiidae (syn. n.).

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Section: Discussionmentioning

confidence: 53%

Section: Taxonomymentioning

confidence: 69%

Section: Taxonomymentioning

confidence: 86%

Section: Taxonomymentioning

confidence: 88%

See 2 more Smart Citations

Rounding up the usual suspects: a standard target‐gene approach for resolving the interfamilial phylogenetic relationships of ecribellate orb‐weaving spiders with a new family‐rank classification (Araneae, Araneoidea)

et al. 2016

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“…The monophyly of the family Linyphiidae is relatively well established on morphological synapomorphies (Hormiga, 1994b; Miller and Hormiga, 2004; Hormiga et al., 2005) as well as its sister group relationship to the relictual family Pimoidae (Wunderlich, 1986; Hormiga, 1993, 1994b, 2003, 2008; Hormiga et al., 2005; Hormiga and Tu, 2008). Within Linyphiidae, the monophyly of the subfamilies Mynogleninae and Erigoninae is also robustly supported, based on the results of several cladistic analyses of morphological data (Hormiga, 1993, 1994b, 2000; Miller and Hormiga, 2004).…”

Section: Introductionmentioning

confidence: 99%

Higher‐level phylogenetics of linyphiid spiders (Araneae, Linyphiidae) based on morphological and molecular evidence

2009

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This study infers the higher-level cladistic relationships of linyphiid spiders from five genes (mitochondrial CO1, 16S; nuclear 28S, 18S, histone H3) and morphological data. In total, the character matrix includes 47 taxa: 35 linyphiids representing the currently used subfamilies of Linyphiidae (Stemonyphantinae, Mynogleninae, Erigoninae, and Linyphiinae (Micronetini plus Linyphiini)) and 12 outgroup species representing nine araneoid families (Pimoidae, Theridiidae, Nesticidae, Synotaxidae, Cyatholipidae, Mysmenidae, Theridiosomatidae, Tetragnathidae, and Araneidae). The morphological characters include those used in recent studies of linyphiid phylogenetics, covering both genitalic and somatic morphology. Different sequence alignments and analytical methods produce different cladistic hypotheses. Lack of congruence among different analyses is, in part, due to the shifting placement of Labulla, Pityohyphantes, Notholepthyphantes, and Pocobletus. Almost all combined analyses agree on the monophyly of linyphioids, Pimoidae, Linyphiidae, Erigoninae, Mynogleninae, as well as Stemonyphantes as a basal lineage within Linyphiidae. Our results suggest independent origins of the desmitracheate tracheal system in micronetines and erigonines, and that erigonines were primitively haplotracheate. Cephalothoracic glandular specializations of erigonines and mynoglenines apparently evolved independently. Subocular sulci of mynoglenines and lateral sulci (e.g. Bathyphantes) evolved independently but glandular pores in the prosoma proliferated once. The contribution of different character partitions and their sensitivity to changes in traditional analytical parameters is explored and quantified.

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Pedipalp sclerite homologies and phylogenetic placement of the spider genus Stemonyphantes (Linyphiidae, Araneae) and its implications for linyphiid phylogeny

Gavish‐Regev

Hormiga

Scharff

2013

Invert. Systematics

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Male secondary genitalia (pedipalps) are useful characters for species discrimination in most spider families. Although efforts have been made to establish pedipalp sclerite homologies, there are still many inconsistencies in their use. The majority of the morphological characters used to reconstruct the linyphiid phylogeny address male genitalic variation; these inconsistencies may affect the phylogeny and our understanding of linyphiid evolution. Stemonyphantes Menge, 1866, has been hypothesised to be sister to all remaining Linyphiidae. However, despite the basal position of Stemonyphantes, its pedipalp sclerite homologies are not well understood and, along with its monophyly, have never been thoroughly tested in a phylogenetic context. We tested the homology of tegular and radical structures of five Stemonyphantes species to the known linyphioid and araneoid sclerites. All minimum-length trees found under all analytical methods used support Stemonyphantes monophyly and its placement as the sister group to all other Linyphiidae. Our study suggests that Stemonyphantes, unlike any other linyphiids, does have homologues of the araneoid median apophysis and conductor. As Stemonyphantes is the sister group of all other linyphiids, resolving its pedipalp sclerite homologies is critical for understanding sclerite homologies and the phylogeny of the entire family.

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On the spider genus Weintrauboa (Araneae, Pimoidae), with a description of a new species from China and comments on its phylogenetic relationships

Cited by 9 publications

References 20 publications

Rounding up the usual suspects: a standard target‐gene approach for resolving the interfamilial phylogenetic relationships of ecribellate orb‐weaving spiders with a new family‐rank classification (Araneae, Araneoidea)

Rounding up the usual suspects: a standard target‐gene approach for resolving the interfamilial phylogenetic relationships of ecribellate orb‐weaving spiders with a new family‐rank classification (Araneae, Araneoidea)

Higher‐level phylogenetics of linyphiid spiders (Araneae, Linyphiidae) based on morphological and molecular evidence

Pedipalp sclerite homologies and phylogenetic placement of the spider genus Stemonyphantes (Linyphiidae, Araneae) and its implications for linyphiid phylogeny

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