Redescription and phylogenetic placement of the Hispaniolan spider genus Lomaita Bryant, 1948 (Araneae, Linyphiidae)

Silva-Moreira, Thiago da; Hormiga, Gustavo

doi:10.11646/zootaxa.3920.2.2

Zootaxa

2015

DOI: 10.11646/zootaxa.3920.2.2

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Redescription and phylogenetic placement of the Hispaniolan spider genus Lomaita Bryant, 1948 (Araneae, Linyphiidae)

Thiago da Silva-Moreira

Gustavo Hormiga

Abstract: The monotypic linyphiid genus Lomaita Bryant 1948 is redescribed. We present an updated description of the male of L. darlingtoni, the first description of the female and data on its natural history and distribution in the Dominican Republic. We provide a hypothesis on the phylogenetic placement of Lomaita based on cladistic analyses of morphological characters.

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Cited by 4 publications

References 14 publications

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Revision and phylogenetics of the Neotropical sheet weaving spider genus

Moreira

Hormiga

2022

Invert. Systematics

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The Mounded Posterior Median Eyes (MPME) clade is a group of linyphiid spiders characterized by having posterior median eyes (PME) on a mound. The species diversity of this lineage, especially in the Neotropical region, is still largely unknown. In this study, we tackled one of the MPME groups, the genus Diplothyron Millidge, 1991. We have studied numerous specimens from both museums and freshly collected specimens to monograph Diplothyron. We also compiled both morphological and behavioral data from Diplothyron and representatives of higher-level lineages within Linyphiidae and several potential MPME groups to infer the phylogenetic relationships. We redescribed the type species, Diplothyron fuscus Millidge, 1991 and described the previously unknown male, and six new species: Diplothyron ballesterosi sp. nov., D. dianae sp. nov., D. monteverde sp. nov., D. nubilosus sp. nov., D. sandrae sp. nov. and D. solitarius sp. nov. We also transferred the following species from Linyphia to Diplothyron based on the study of the type material: D. chiapasia (Gertsch & Davies, 1946) comb. nov., D. linguatulus (F.O. Pickard-Cambridge, 1902) comb. nov., D. nigritus (F.O. Pickard-Cambridge, 1902) comb. nov., D. simplicatus (F.O. Pickard-Cambridge, 1902) comb. nov. and D. trifalcatus (F.O. Pickard-Cambridge, 1902) comb. nov. Diplothyron species are mainly found in the cloud forests of Central and South America, with the distribution stretching from the Colombian Andes to the Mexican Sierra Madre across the Central American mountain chains. We also provide a detailed morphological comparison between Diplothyron and closely related genera in the MPME clade, focusing on the genital morphology, including identification keys to both the MPME genera and species of Diplothyron. Our cladistic analyses recovered Diplothyron as a monophyletic group placed within the MPME clade. A newly circumscribed lineage now includes the genera Diplothyron, Dubiaranea Mello-Leitão, 1943; Linyphia Latreille, 1804; Lomaita Bryant, 1948; Microlinyphia Gerhardt, 1928; Neriene Blackwall, 1833; Notiohyphantes Millidge, 1985; Novafrontina Millidge, 1991 and Pityohyphantes Simon, 1929.

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Revision and phylogenetics of the Neotropical sheet weaving spider genus

Moreira

Hormiga

2022

Invert. Systematics

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Systematics of the Neotropical spider genera Jalapyphantes and Selenyphantes and the circumscription of the Pocobletus clade (Araneae: Linyphiidae)

Moreira

Hormiga

2021

Zoological Journal of the Linnean Society

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We have revised the linyphiid genera Jalapyphantes and Selenyphantes. Jalapyphantes now includes five species, one of them new (J. tricolor sp. nov.). Selenyphantes now consists of six species of which five are new (S. costaricensis sp. nov., S. gaimani sp. nov., S. iztactepetl sp. nov., S. orizabae sp. nov. and S. volcanicus sp. nov.). To infer the phylogenetic position of Jalapyphantes and Selenyphantes, we analysed nucleotide sequence data from five markers (16S,18S, 28S, COI and histone H3) combined with morphological and behavioural data. Both genera are monophyletic and sister to each other. Both Jalapyphantes and Selenyphantes are included within the newly circumscribed Pocobletus clade, which includes all known species of Pocobletus plus several undescribed species. Pocobletus has nomenclatural priority over the junior synonyms Exechopsis, Exocora and Graphomoa.

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A new species and new records of the spider genus Dubiaranea (Araneae, Linyphiidae) from southern Brazil and Uruguay, with an analysis of the potential distribution of the species

CAJADE,

HAGOPIÁN,

RODRIGUES

et al. 2024

Zootaxa

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Dubiaranea magatama Cajade, Hagopián & Rodrigues n. sp. is described from Uruguay, and southern Brazil based on males and females from several types of native forests, and a potential distribution for this species is modeled. The predicted model for this species indicates a Pampean province and southern Atlantic Forest biome distribution. Three variables contributed significantly to the model with positive influence: the spatial component, the proximity to large rivers, and the tree cover. Also, we provide new records of Dubiaranea difficilis (Mello-Leitão 1944) for Uruguay and a model of its potential distribution was performed. It showed that tree cover, the proximity to large rivers, the spatial component and precipitation/evapotranspiration constraints were recovered for the model with positive influence, expanding the potential distribution area previously proposed.

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Redescription and phylogenetic placement of the Hispaniolan spider genus Lomaita Bryant, 1948 (Araneae, Linyphiidae)

Cited by 4 publications

References 14 publications

Revision and phylogenetics of the Neotropical sheet weaving spider genus

Revision and phylogenetics of the Neotropical sheet weaving spider genus

Systematics of the Neotropical spider genera Jalapyphantes and Selenyphantes and the circumscription of the Pocobletus clade (Araneae: Linyphiidae)

A new species and new records of the spider genus Dubiaranea (Araneae, Linyphiidae) from southern Brazil and Uruguay, with an analysis of the potential distribution of the species

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