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

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11682
Author(s):  
Caio Gueratto ◽  
Alípio Benedetti ◽  
Ricardo Pinto-da-Rocha

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.

2005 ◽  
Vol 22 (3) ◽  
pp. 639-644
Author(s):  
Freddy Bravo

Three new species of Maruina Müller, 1895 from Brazil are described, one species from northeastern, Bahia, and two from southeastern, one from Rio de Janeiro and the other from São Paulo.


Zootaxa ◽  
2017 ◽  
Vol 4294 (4) ◽  
pp. 471
Author(s):  
CARLOS G. C. MIELKE ◽  
ELYANA G. JOERKE ◽  
ALINE V. MIRANDA ◽  
JANE COSTA

Three species of Saturniidae (Hemileucinae), all belonging to Periga Walker, 1855, are recognized as new and are described as: P. paranapiacaba sp. nov., P. faustinoi sp. nov., and P. intervales sp. nov. The Periga gueneei species-group is proposed to accommodate P. gueneei (Lemaire, 1973) and the new species P. intervales sp. n. described here. The status of another Saturniidae species is revised: Automeris intermedius (Bouvier, 1929), stat. rev., which is removed from the synonymy with A. nubila Walker, 1855. Habitus and illustrations of male genitalia are provided for all new species and both Automeris species. All holotypes are deposited in the Entomological Collection of the Oswaldo Cruz Institute, Rio de Janeiro, Rio de Janeiro, Brazil. 


2011 ◽  
Vol 101 (4) ◽  
pp. 350-371 ◽  
Author(s):  
Arno Antonio Lise ◽  
Estevam L. Cruz da Silva

The spider genus Berlandiella Mello-Leitão, 1929 is revised and the three known species, Berlandiella insignis Mello-Leitão, 1929 (Rio de Janeiro), B. magna Mello-Leitão, 1929 (Pernambuco, Minas Gerais, Rio Grande do Sul), and B. polyacantha Mello-Leitão, 1929 (Rio de Janeiro, São Paulo), are redescribed and illustrated. Lectotypes for Berlandiella insignis, B. magna and B. polyacantha are designated. Descriptions and illustrations of three new species are presented: B. robertae sp. nov. (Brazil and Argentina), B. meridionalis sp. nov. (Brazil) and B. querencia sp. nov. (Brazil). The geographical distribution of the representatives of the genus is presented.


1972 ◽  
Vol 21 (0) ◽  
pp. 01-13 ◽  
Author(s):  
Pierre Ch. Montouchet

A consultation of the original descriptions of the genera of Scissurellidae led the author to conclude that the valid names for the genera of this family are: Scissurella d'Orbigny, 1823 (redescription by Sowerby, 1824), Anatoma Woodward, 1859, Inoisura Hedley, 1904, Scissurona Iredale, 1924, Sinezona Finlay, 1927. Scissurella and Anatoma are cosmopolites, the first generally living in shallow waters, associated to sea-weeds, while the second is found in deep waters. The three last genera are restricted to Australasia. Three new species are described from the Brazilian coast: Soissu rella alexandrei, Scissurella eleotilis and Scissurella morretesi. The internal anatomy of S. alexandrei is described. These three new species have been found in littoral shallow waters, the two first on the northeast Brazilian coast, the third on the coast of the State of São Paulo. The fourth known species of Scissurellidae from Brazil, Anatoma aedonia (Watson, 1886), was dredged by H.M.S, "Challenger", in 1873, off Pernambuco, 350 fm (640 m).


1986 ◽  
Vol 1 (3) ◽  
Author(s):  
Edmundo Ferraz Nonato ◽  
Germán Armando Bolívar ◽  
Paulo Da Cunha Lana

Laonice branchiata, a new spionid polychaete, is described based on material collected in shallow waters of estuarine and shelf environments off the States of Paraná, São Paulo and Rio de Janeiro (SE Brazil).(Laonice branchiata, uma nova espécie de Spionidae da costa sudeste brasileira). Laonice branchiata, uma nova espécie de poliqueta da família Spionidae, é descrita a partir de material coletado em ambientes estuarinos e de plataforma ao longo dos estados do Paraná, São Paulo e Rio de Janeiro (costa sudestedo Brasil).


Phytotaxa ◽  
2018 ◽  
Vol 356 (2) ◽  
pp. 167
Author(s):  
MAYARA K. CADDAH ◽  
JULIA MEIRELLES

Miconia goldenbergiana, a new species from the Atlantic Forest in southeastern Brazil, is described and illustrated. The new species have been extensively collected since the end of the XIX century but have been confused with M. budlejoides and M. formosa, species that also have discolorous and suprabasal leaves and glomerulate inflorescences. From the first species, it can be distinguished by papyraceous leaves with the abaxial surface covered by lepidote trichomes. From the second species, it can be distinguished also by the texture of leaves, and by its narrower size, crenulate to serrulate margins and acute base, besides the smaller size of the flowers. The new species is known from the states of Espírito Santo, Rio de Janeiro and eastern São Paulo, and is in danger of extinction.


Zootaxa ◽  
2010 ◽  
Vol 2566 (1) ◽  
pp. 57
Author(s):  
RODNEY RAMIRO CAVICHIOLI

The sharpshooter genus Lebaziella is described and placed in the tribe Cicadellini. Two new species of Lebaziella gen.nov. are described and illustrated: the type-species L. renatae sp. nov. (Bahia State, Brazil) and L. viridis sp. nov. (Rio de Janeiro, São Paulo, and Paraná States, Brazil). Species belonging to the new genus can be distinguished from other genera of Cicadellini based on the following characters: (1) pronotum narrower than head with lateral margin parallel; (2) male pygofer without processes; (3) subgenital plate longer than pygofer with many microsetae distributed across its surface; (4) aedeagus with an unpaired apical process, and (5) paraphyses absent.


Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 547
Author(s):  
BRUNO ZILBERMAN

Corotoca Schiødte, 1853 is a Neotropical genus of termitophiles beetles, with five species, and its description marks the first record of insects associated with termites. A new species, Corotoca fontesi sp. nov., from Brazil, is described and illustrated, and a taxonomical problem regarding to the identification and nomenclatural status of two species, Corotoca phylo Schiødte, 1853 and Corotoca seeversi Fontes, 1977, is solved. Therefore, Corotoca seeversi is proposed as a new junior synonym of C. phylo, and the material identified as C. phylo housed in the Museum of Zoology of the University of São Paulo, Brazil (MZUSP) is recognized as a new species, Corotoca fontesi sp. nov. New morphological and sexual dimorphism data in the species, and solution of some messy informations about the genus present in the literature are also present. 


Zootaxa ◽  
2008 ◽  
Vol 1814 (1) ◽  
pp. 21 ◽  
Author(s):  
RAFAEL P. INDICATTI ◽  
SYLVIA M. LUCAS ◽  
JOSÉ P. L. GUADANUCCI ◽  
FLÁVIO U. YAMAMOTO

The genus Magulla Simon 1892 is revalidated and redescribed. The female of the type species M. obesa Simon 1892 is redescribed and the male is described for the first time. Magulla janeirus (Keyserling 1891) is considered a valid species. Magulla symmetrica Bücherl 1949 is transferred to Plesiopelma Pocock 1901, and considered a junior synonym of P. insulare (Mello-Leitão 1923). Additionally, two new species are described from Brazil: M. buecherli n. sp. from Ilhabela, São Paulo and M. brescoviti n. sp. from São Francisco de Paula, Rio Grande do Sul.


Phytotaxa ◽  
2016 ◽  
Vol 267 (3) ◽  
pp. 201
Author(s):  
CLAUDIA PIGATTI CALIARI ◽  
VINICIUS CASTRO SOUZA ◽  
FIORELLA F. MAZINE

Two new species of Myrcia from the Atlantic rainforest in southeastern Brazil, Myrcia congestiflora and Myrcia longipaniculata are here described and illustrated. Myrcia congestiflora occurs in São Paulo and Rio de Janeiro states and is similar to Myrcia cerqueiria, differing by having densely sericeous indumentum (versus sparse and shorter trichomes), larger flowers and flower buds (flower buds with 3–4 mm versus 1.1 mm long) and by acute or obtuse calyx lobes rather than rounded. Myrcia longipaniculata is known for one collection from the boundary of São Paulo and Rio de Janeiro differing from Myrcia spectabilis mainly by the longer inflorescence size (29 cm versus 3.5–21.5 cm long.) as well as for presenting a strong reddish or ferruginous indumentum (versus brown to yellowish).


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