On the taxonomy of Latonigena auricomis (Araneae, Gnaphosidae), with notes of geographical distribution and natural history

Jorge, Carolina; Carrión, Nicolás López; Grismado, Cristian J.; Simó, Miguel

doi:10.1590/s0073-47212013000100010

Cited by 4 publications

(3 citation statements)

References 11 publications

(6 reference statements)

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“…Accordingly, the most suitable conditions are represented in a constrained latitudinal range (from −29.41°S to −35.49°S), which comprises Uruguay, southern Brazil, and eastern Argentina. A similar distribution pattern was recently reported for the spider Latonigena auricomis Simon, 1893 (Gnaphosidae), for which isothermality was the variable with highest contribution (Jorge et al 2013). Future studies could be focused on testing if other arachnid species distributions in this latitudinal range could reflect the influence of this climatic variable.…”

Section: Environmental Contribution To the Modelssupporting

confidence: 78%

A predictive modeling approach to test distributional uniformity of Uruguayan harvestmen (Arachnida: Opiliones)

et al. 2014

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Background: Harvestmen are a good taxon for biogeographic studies due to their low vagility and their dependence on environmental conditions which make most of them live in humid and shaded habitats. Current knowledge of the geographical distribution of Uruguayan opiliofauna suggests that no evident zoogeographic areas are present, mainly because of the apparent uniformity of the landscape of this country. Recent biogeographic studies indicate that Uruguay represents a biogeographical crossroad between three South American provinces, and the aim of this study is focused on determining if this fact is reflected in the distribution of the Uruguayan opiliofauna. To test this presumption, we used the species distribution model methodology. Distribution data about four harvestmen species from Uruguay and neighboring countries were analyzed. We used the maximum entropy principle to perform a distribution model for each species. Results: We recognized Acanthopachylus aculeatus and Pachyloides thorellii as two Pampasic representatives of the Uruguayan opiliofauna. The other species studied, Discocyrtus prospicuus and Metalibitia paraguayensis, reflect Mesopotamian and Paranaense influences in the Uruguayan territory. Isothermality was the climatic variable with the best contribution in the models of the four species, reflecting constrained latitudinal ranges. Conclusions: Results of the present study suggest that two roughly different opiliological areas for Uruguay can be recognized, based on climatic variables.Fil: Simó, Miguel. Universidad de la Republica; Uruguay. Museo Nacional de Historia Natural Nacional; UruguayFil: Guerrero, José Carlos. Universidad de la Republica; UruguayFil: Giuliani, Leandro. Universidad de la Republica; UruguayFil: Castellano, Ismael. Universidad de la Republica; UruguayFil: Acosta, Luis Eduardo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Cordoba. Instituto de Diversidad y Ecologia Animal; Argentina. Universidad Nacional de Cordoba. Facultad de Cs.exactas Fisicas y Naturales. Catedra de Diversidad Animal I; Argentin

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Section: Environmental Contribution To the Modelssupporting

confidence: 78%

A predictive modeling approach to test distributional uniformity of Uruguayan harvestmen (Arachnida: Opiliones)

et al. 2014

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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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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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“…The South American gnaphosid genus Latonigena Simon comprises to date eight species, and is distributed in Brazil, Bolivia, Argentina and Uruguay (Platnick, 2013). The genus remained little known for more than a century since its description, until recently Jorge et al (2013) studied the taxonomy, distribution and biology of the type species (L. auricomis Simon), and Ott et al (2012) described seven species from Brazil and Bolivia, and transferred L. africana Tucker to the genus Trichothyse Tucker.…”

Section: Introductionmentioning

confidence: 99%

On the genus Latonigena Simon (Araneae, Gnaphosidae): description of two new species, the female of L. santana,and new records

Carrión¹,

Grismado²

2014

MACN

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The taxonomy of the genus Latonigena Simon is updated after the study of the collection of the Museo Argentino de Ciencias Naturales (Buenos Aires). Two new species are described: L. pampa, n. sp., from Buenos Aires Province, Argentina, and L. pittieri, n. sp., from Aragua, Venezuela (the first record of a member of this genus from that country). Three species previously known from Brazil (L. turvo, L. lami, and L. santana) are newly reported from Argentina, and the female of the latter is here described for the first time. Zelotes zonatus (Holmberg) is considered nomen dubium.

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On the taxonomy of Latonigena auricomis (Araneae, Gnaphosidae), with notes of geographical distribution and natural history

Abstract: The male of Latonigena auricomis Simon, 1893 is described for the first time and the female is redescribed. New records are provided for Argentina, Brazil and Uruguay. Notes on the natural history and a potential distribution model of the species are presented in the Neotropical Region.

Cited by 4 publications

References 11 publications

A predictive modeling approach to test distributional uniformity of Uruguayan harvestmen (Arachnida: Opiliones)

A predictive modeling approach to test distributional uniformity of Uruguayan harvestmen (Arachnida: Opiliones)

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

On the genus Latonigena Simon (Araneae, Gnaphosidae): description of two new species, the female of L. santana,and new records

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