Nova espécie de Mischonyx do estado do Rio de Janeiro, Brasil (Arachnida, Opiliones, Gonyleptidae)

Vasconcelos, Eduardo Mourão

doi:10.1590/s0073-47212005000300001

Cited by 3 publications

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“…Finally, in Vasconcelos (2004Vasconcelos ( , 2005a the two last Mischonyx species were described: Mischonyx kaisara, from the coast of the state of São Paulo, and Mischonyx poeta, from the northern portion of the state of Rio de Janeiro. He also described Gearaeocormobius reitzi Vasconcelos, 2005b.…”

Section: Mischonyx Backgroundmentioning

confidence: 99%

Phylogenetic relationships of the genus Mischonyx Bertkau, 1880, with taxonomic changes and three new species description (Opiliones: Gonyleptidae)

Gueratto

Benedetti

Pinto‐da‐Rocha

2021

PeerJ

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The type species of Mischonyx Bertkau 1880, Mischonyx squalidus, was described based on a juvenile. The holotype is lost. Based on a revision of publications, the genus includes 12 species, all in Brazil. The objectives of this research are: to propose a phylogenetic hypothesis for Mischonyx based on Total Evidence (TE); propose taxonomic changes based on the phylogeny; and analyze the phylogenetic hypothesis biogeographically. Using the exemplar approach to taxon selection, we studied 54 specimens, 15 outgroups and 39 ingroup taxa using seven molecular markers (28S, 12S and 16S ribosomal genes, citochrome oxidase subunit I gene, carbamoyl-phosphate synthetase gene, internal transcribed spacer subunit 2 and histone H3 gene), totaling 3,742 bp, and 128 morphological characters. We analyzed the dataset under three optimality criteria: Maximum likelihood (ML), Maximum parsimony (MP) and Bayesian. We discuss the transformation of character states throughout the phylogeny, the different phylogenetic hypotheses using different datasets and the congruence of evidence between the clades obtained by the phylogenetic analysis and the biogeographical hypothesis for the Atlantic Forest areas of endemism. We estimate that Mischonyx clade diverged 50.53 Mya, and inside the genus there are two major clades. One of them cointains species from Paraná, Santa Catarina, South of São Paulo and Serra do Mar Areas of Endemism and the other has species from Espinhaço, Bocaina, South coast of Rio de Janeiro and Serra dos Órgãos Areas of Endemism. The first split inside these two clades occurred at 48.94 and 44.80 Mya, respectively. We describe three new species from Brazil: Mischonyx minimus sp. nov. (type locality: Petrópolis, Rio de Janeiro), Mischonyx intervalensis sp. nov. (type locality: Ribeirão Grande, São Paulo) and Mischonyx tinguaensis sp. nov (type locality: Nova Iguaçu, Rio de Janeiro). The genus Urodiabunus Mello-Leitão, 1935 is considered a junior synonym of Mischonyx. Weyhia spinifrons Mello-Leitão, 1923; Weyhia clavifemur Mello-Leitão, 1927 and Geraeocormobius reitzi Vasconcelos, 2005 were transferred to Mischonyx. Mischonyx cuspidatus (Roewer, 1913) is a junior synonym of M. squalidus Bertkau, 1880. In the results of the phylogenetic analyses, Gonyleptes antiquus Mello-Leitão, 1934 (former Mischonyx antiquus) does not belong in Mischonyx and its original combination is re-established. As it is now defined, Mischonyx comprises 17 species, with seven new combinations.

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Section: Mischonyx Backgroundmentioning

confidence: 99%

Phylogenetic relationships of the genus Mischonyx Bertkau, 1880, with taxonomic changes and three new species description (Opiliones: Gonyleptidae)

Gueratto

Benedetti

Pinto‐da‐Rocha

2021

PeerJ

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“…Apparently, Mischonyx squalidus holotype is lost and the author based his conclusions on Roewer's drawings and description. Finally, in Vasconcelos (2004Vasconcelos ( , 2005 the two last Mischonyx species were described: Mischonyx kaisara, from the coast of São Paulo state, and Mischonyx poeta, from the north of Rio de Janeiro state. Besides these two publications, Vasconcelos has an unpublished dissertation regarding Mischonyx taxonomy (Vasconcelos, 2003).…”

Section: Mischonyxmentioning

confidence: 99%

“…Likelihood (Figure 05- holacanthus (Mello-Leitão, 1927); M. insulanus (Soares, 1972); M. intermedius (Mello-Leitão, 1935); M. kaisara (Vasconcelos, 2004); M. poeta (Vasconcelos, 2005); M.…”

Section: Total Evidence Analysismentioning

confidence: 99%

“…As M. poeta was recently described and there is no new combination for the species, Vasconcelos (2005) (Figs. 22B, 22D, 27D-F (Bertkau, 1880, fig.…”

Section: Mischonyx Poeta (Vasconcelos 2005) (Figs 21a 21c 26g-i)mentioning

confidence: 99%

“…O holótipo está perdido, restando apenas a imagem e a descrição original. Kury, em 2003, considerou vários Roewer, 1927, Geraecormobius clavifemur Mello-Leitão, 1927 e Geraecormobius reitzi Vasconcelos, 2005…”

Section: Introductionunclassified

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Phylogenetic analysis of the genus Mischonyx Bertkau, 1880, with taxonomic changes and new species descriptions (Opiliones: Gonylepitdae: Gonyleptinae)

Silva¹

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Bertkau described Mischonyx genus based on a juvenile, in 1880. This holotype is lost, and we can analyze now only the original drawing and the description. Kury, in 2003, considered other genus junior synonyms of Mischonyx (e.g. Ilhaia and Xundarava). Due to revision publications, the genus contained 11 species. However, until this moment, none proposed a phylogenetic hypothesis for the genus to analyze whether it is valid or not and if all described species as Mischonyx represent a natural clade. The objectives of this research are: to propose a phylogenetic hypothesis for Mischonyx based on Total Evidence (TE), to propose taxonomic changes based on the phylogeny and analyse the phylogenetic hypothesis biogeographically as well. I studied 54 individuals, 15 of external group and 39 of internal group. I sequenced seven genes (28S, 12S, 16S, COI, CAD, ITS e H3), totalizing 3742 bp. I raised 124 morphological and genitalic characters. I analysed the dataset under two optimality criteria: Maximum likelihood (ML) and Maximum parsimony (MP). The hypothesis with better biogeographic and morphological background is the TE with ML. I described Three new species: Mischonyx minimus sp. nov. (type locality: Petrópolis, Rio de Janeiro), Mischonyx intervalensis sp. nov. (type locality: Ribeirão Grande, São Paulo) and Mischonyx petroleiros sp. nov (type locality: Nova Iguaçu, Rio de Janeiro). The genus Urodiabunus is junior synonym of Mischonyx. Geraercormobius

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Addenda and corrigenda to the "Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones)"

Kury¹,

Alonso-Zarazaga

2011

Zootaxa

119

383

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Amendments are made to inconsistencies, mistakes and omissions in the catalogue of American Laniatores by Kury (2003). Discrepancies between dates given in Kury (2003) and Neave’s Nomenclator and the Zoological Record are discussed. Accurate issue dates for relevant publications are used to define priorities. Etymologies are surveyed for generic names, establishing their grammatical gender, so specific names are inflected according to the provisions of the Code. Unavailable generic names are: Messa Sørensen, 1932, Zarax Sørensen, 1932, Prasia Sørensen, 1932, Angistrisoma Roewer, 1932, Angistrisoma Mello-Leitão, 1935, Bunoweyhia Mello-Leitão, 1935, Batomites Mello-Leitão, 1931, Euminua Sørensen, 1932, Minua Sørensen, 1932, Ilhastygnus Roewer, 1943, Fonteboatus Roewer, 1931, Malea Sørensen, 1932, Chersobleptes Sørensen, 1932 and Jimeneziella Avram, 1970. Hernandria Banks, 1909 is unavailable and must be placed as an “incorrect subsequent spelling” of Hernandaria Sørensen, 1884. The valid genus name is Parahernandria Goodnight & Goodnight, 1947 (stat. res.). Zaraxolia Strand, 1942 (stat. res.) is revalidated from the synonymy of Neocynorta Roewer, 1915 with Zarax devians Sørensen, 1932 as type species. Friburgoia Mello-Leitão, 1932 [December] is deemed a junior subjective synonym of Schenkelibunus Strand, 1932 [September] (stat. res.) (inverted precedence between synonyms). Liops Mello-Leitão, 1940 (non Fieber, 1870, nec Gidley, 1906) is a junior homonym and is replaced by its first available synonym, Corcovadesia Soares & Soares, 1954 (stat. res.). The following unavailable generic names are formally described as new: (1) Jimeneziella Kury & Alonso-Zarazaga, gen. nov. (type species: Jimeneziella decui Avram, 1973); (2) Euminua Kury & Alonso-Zarazaga, gen. nov. (type species: Euminua brevitarsa Sørensen, 1932). The following homonym generic names are replaced: (1) Cranellus Roewer 1932, with Narcellus Kury & Alonso-Zarazaga, nom. nov., (2) Metapachylus Pickard-Cambridge, 1905, with Pyropharynx Kury & Alonso-Zarazaga, nom. nov.; (3) Ovalia González-Sponga, 1987, with Oo Kury & Alonso-Zarazaga, nom. nov.; (4) Tiara González-Sponga, 1987 with Mitraia Kury & Alonso-Zarazaga, nom. nov.; (5) Limonia González-Sponga, 1998, with Manuelangelia Kury & Alonso-Zarazaga, nom. nov. Gonyleptes melloleitaoi Kury & Alonso-Zarazaga, nom. nov. is a replacement name for Gonyleptes curvicornis Mello-Leitão, 1932. Discocyrtus confusus Kury, 2003 is unavailable, so this species is here re-described as Discocyrtus confusus Kury n. sp. New combinations are: Parahernandria spinosa (Banks, 1909) (from Hernandaria), Schenkelibunus impar (Mello-Leitão, 1932) (from Friburgoia), Schenkelibunus perditus (Mello-Leitão, 1927) (from Friburgoia), Narcellus balthazar (Roewer, 1932) (from Cranellus), Narcellus montgomeryi (Goodnight & Goodnight, 1947) (from Cranellus), Pyropharynx gracilis (Pickard-Cambridge, 1905) (from Metapachylus), Oo spinosum (GonzálezSponga, 1999) (from Ovalia), Mitraia unispina (González-Sponga, 1987) (from Tiara), Manuelangelia tuberosa (González-Sponga, 1998) (from Limonia), Zaraxolia devians (Sørensen, 1932) (from Zarax), Corcovadesia hexabunus (Mello-Leitão, 1940) (from Liops) and Corcovadesia venefica (H. Soares, 1966) (from Liops). The following genera of Pachylinae, which appeared in conflicting subfamilies in Kury 2003, are formally transferred to the Ampycinae: Ampycella Roewer, 1929, Glysterus Roewer, 1931, Hernandarioides Pickard-Cambridge, 1905, Parahernandria Goodnight & Goodnight, 1947 and Hutamaia Soares & Soares, 1977. A list of taxa described in 2003 is interpolated. A complementary list of the 2004–2009 systematic literature on the subject is given.

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Nova espécie de Mischonyx do estado do Rio de Janeiro, Brasil (Arachnida, Opiliones, Gonyleptidae)

Cited by 3 publications

References 1 publication

Phylogenetic relationships of the genus Mischonyx Bertkau, 1880, with taxonomic changes and three new species description (Opiliones: Gonyleptidae)

Phylogenetic relationships of the genus Mischonyx Bertkau, 1880, with taxonomic changes and three new species description (Opiliones: Gonyleptidae)

Phylogenetic analysis of the genus Mischonyx Bertkau, 1880, with taxonomic changes and new species descriptions (Opiliones: Gonylepitdae: Gonyleptinae)

Addenda and corrigenda to the "Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones)"

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