The short-legged Andean cosmetids revisited: the genus Libitia Simon, 1879 with description of two new species (Opiliones, Cosmetidae)

  • Miguel Medrano Laboratório de Aracnologia, Departamento de Invertebrados, Museu Nacional/UFRJ, Quinta da Boa Vista, São Cristóvão, 20.940-040, Rio de Janeiro – RJ http://orcid.org/0000-0002-3215-3592
  • Ludson Neves de Ázara Laboratório de Aracnologia, Departamento de Invertebrados, Museu Nacional/UFRJ, Quinta da Boa Vista, São Cristóvão, 20.940-040, Rio de Janeiro – RJ
  • Adriano Brilhante Kury Laboratório de Aracnologia, Departamento de Invertebrados, Museu Nacional/UFRJ, Quinta da Boa Vista, São Cristóvão, 20.940-040, Rio de Janeiro – RJ
DOI: https://doi.org/10.5852/ejt.2020.634
Keywords: Gonyleptoidea, Neotropics, Andes, Metalibitia, Paecilaemella

Abstract

The old genus Libitia Simon, 1879 of small Andean harvestmen is revisited. The monotypic genus Libitiella Roewer, 1947 is herein considered a junior subjective synonym of Libitia. Accordingly, Libitiella bipunctata (Sørensen, 1932) is restored to the combination Libitia bipunctata. The species Libitia cordata and Libitia bipunctata comb. nov. are redescribed and the new species Libitia gandalf sp. nov. and Libitia iguaque sp. nov. are herein described from Cordillera Oriental of Colombian Andes (Chingaza Natural Park and Iguaque Natural Park, respectively). The species Gonyleptes multimaculatus Wood 1869, currently under the synonymy of L. cordata, is revalidated and transferred to Paecilaemella Roewer, 1925 forming Paecilaemella multimaculata comb. nov., and the species Cynorta itacoaiensis H. Soares, 1970 is herein considered a junior subjective synonym of it. In addition, the second current species of the genus, Libitia fusca (Simon, 1879), is transferred to Metalibitia. Libitia is diagnosed based in genital and external morphology, an identification key of the four species and distribution maps are offered.

References

Butler A.G. 1873. A monographic list of the species of the genus Gonyleptes, with descriptions of three remarkable new species. Annals and Magazine of Natural History 11 (62): 112–117. https://doi.org/10.1080/00222937308696775

Cokendolpher J.C. & Peek M.L. 1991. Horatio C. Wood (1841–1920) and his contributions to Arachnology. Revue arachnologique 9 (8): 89–101.

Coronato-Ribeiro A. & Pinto-da-Rocha R. 2017. Taxonomic revision and cladistic analysis of the genus Metalibitia Roewer, 1912 (Opiliones, Cosmetidae, Cosmetinae). Zootaxa 4291 (2): 201–242. https://doi.org/10.11646/zootaxa.4291.2.1

García A.F. & Kury A.B. 2017. Taxonomic revision of the Andean harvestman genus Rhaucus Simon, 1879 (Arachnida, Opiliones, Cosmetidae). Zootaxa 4338 (3): 401–440. https://doi.org/10.11646/zootaxa.4338.3.1

Gervais P. 1844. Acères Phrynéides, Scorpionides, Solpugides, Phalangides et Acarides; Dicères Épizoïques, Aphaniptères et Thysanoures. In: Walckenaer C.A. (ed.) Histoire naturelle des Insectes aptères, Tome 3: 94–131. Librairie Encyclopédique de Roret, Paris.

González-Sponga M.A. 1992. Arácnidos de Venezuela. Opiliones Laniatores II. Familia Cosmetidae. Academia de Ciencias Físicas, Matemáticas y Naturales, Caracas.

González-Sponga M.A. 1996. Arácnidos de Venezuela. Un nuevo género y una nueva especie de la familia Cosmetidae del Parque Nacional “Serranía de la Neblina”, Edo. Amazonas (Opiliones). Boletín de la Academia de Ciencias, Matemáticas y Naturales 53: 97–107.

González-Sponga M.A. 1998a. Arácnidos de Venezuela. Dos nuevos géneros y cuatro nuevas especies de Opiliones Laniatores del Tepui Guaiquinima y del Parque Nacional Canaima (Phalangodidae: Cosmetidae). Memoria Sociedad de Ciencias Naturales La Salle 57 (148): 3–16.

González-Sponga M.A. 1998b. Arácnidos de Venezuela. Un nuevo genero y cinco nuevas especies de Opiliones Laniatores (Cosmetidae). Acta Biologica Venezuelica 18 (4): 1–16.

Goodnight C.J. & Goodnight M.L. 1953. The opilionid fauna of Chiapas, Mexico, and adjacent areas (Arachnoidea, Opiliones). American Museum Novitates 1610: 1–81.

Kästner A. 1937. Chelicerata. 7. Ordnung der Arachnida: Opiliones Sundeval = Weberknechte. In: Kukenthal W. & Krumbach T. (eds) Handbuch der Zoologie vol. 3 no. 2: 300–393. Berlin & Leipzig, Walter de Gruyte.

Krell F.T. & Marshall S.A. 2017. New species described from photographs: yes? no? sometimes? a fierce debate and a new declaration of the ICZN. Insect Systematics and Diversity 1: 3–19. https://doi.org/10.1093/isd/ixx004

Kury A.B. 2003. Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Ibérica de Aracnología vol. especial monográfico 1: 1–337.

Kury A.B. 2012. A new genus of Cranaidae from Ecuador (Opiliones: Laniatores). Zootaxa 3314: 31–44. https://doi.org/10.11646/zootaxa.3314.1.3

Kury A.B. & Barros C.M. 2014. A new genus and eight new species of Amazonian cosmetines (Opiliones, Laniatores, Cosmetidae). Zoological Studies 53: 1–46. https://doi.org/10.1186/s40555-014-0024-4

Kury A. & Medrano M. 2016. Review of terminology for the outline of dorsal scutum in Laniatores (Arachnida, Opiliones). Zootaxa 4097 (1): 130–134. https://doi.org/10.11646/zootaxa.4097.1.9

Kury A.B. & Medrano M. 2018. A whiter shade of pale: anchoring the name Paecilaema C. L. Koch, 1839 onto a neotype (Opiliones, Cosmetidae). Zootaxa 4521 (2): 191–219. https://doi.org/10.11646/zootaxa.4521.2.3

Kury A.B. & Orrico V.G.D. 2006. A new species of Lacronia Strand, 1942 from the highlands of Rio de Janeiro (Opiliones, Gonyleptidae, Pachylinae). Revista Ibérica de Aracnología 13: 147–153.

Kury A.B. & Villarreal M.O. 2015. The prickly blade mapped: establishing homologies and a chaetotaxy for macrosetae of penis ventral plate in Gonyleptoidea (Arachnida, Opiliones, Laniatores). Zoological Journal of the Linnean Society 174 (1): 1–46. https://doi.org/10.1111/zoj.12225

Kury A.B, Giupponi A.P.L & Mendes A.C. 2018. Immolation of Museu Nacional, Rio de Janeiro – unforgettable fire and irreplaceable loss. Journal of Arachnology 46 (3): 556–558. https://doi.org/10.1636/JoA-S-18-094.1

Martens J. 1978. Spinnentiere, Arachnida: Weberknechte, Opiliones. Die Tierwelt Deutschlands 64. G. Fischer Verlag, Jena.

Medrano M. & Kury A.B. 2016. Characterization of Platymessa with redescription of the type species and a new generic synonymy (Arachnida, Opiliones, Cosmetidae). Zootaxa 4085 (1): 52–62. https://doi.org/10.11646/zootaxa.4085.1.2

Medrano M. & Kury A.B. 2017. Taxonomic revision of the Andean genus Eulibitia Roewer, 1912 (Arachnida, Opiliones, Cosmetidae), with the description of five new species. European Journal of Taxonomy 357: 1–55. https://doi.org/10.5852/ejt.2017.357

Medrano M.A. & Kury A.B. 2018. Relationships and cladistic analysis of Roquettea with description of two new species and notes about evolution of stylus in Cosmetidae (Opiliones, Grassatores). Invertebrate Systematics 32: 1206–1233. https://doi.org/10.1071/IS18013

Medrano M., Villarreal O. & Kury A.B. 2019. Review of Neocynorta Roewer, 1915 with two new generic synonymies (Opiliones, Gonyleptoidea, Cosmetidae). Journal of Natural History 53 (11–12): 677–704. https://doi.org/10.1080/00222933.2019.1606357

Mello-Leitão C.F de 1923. Opiliones Laniatores do Brasil. Archivos do Museu Nacional 24: 107–197.

Mello-Leitão C.F de 1926. Notas sobre Opiliones Laniatores sul-americanos. Revista do Museu Paulista 14: 327–383.

Mello-Leitão C.F. de 1932. Opiliões do Brasil. Revista do Museu Paulista 17 (2): 1–505.

Mello-Leitão C.F. de 1933. Notas sobre os opiliões do Brasil descritos na obra póstuma de Sörensen: “Descriptiones Laniatorum”. Boletim do Museu Nacional 9 (1): 99–114.

Monteiro Y.F. & Pinto-Da-Rocha R. 2015. Revision of the genus Ferkeria Roewer, 1947, with the description of a new species (Opiliones: Laniatores: Cosmetidae). Zootaxa 4006 (2): 361–373. https://doi.org/10.11646/zootaxa.4006.2.7

Myers N., Mittermeier R.A., Mittermeier C.G., Fonseca G.A.B. & Kent J. 2000. Biodiversity hotspots for conservation priorities. Nature 403: 853–858. https://doi.org/10.1038/35002501

Olivier G.A. 1792. Catalogue des insectes envoyés de Cayenne, à la Société d’Histoire Naturelle de Paris, par M. Le Blond. Actes de la Société d’Histoire Naturelle de Paris 1: 120–125.

Pinto-da-Rocha R. & Hara M.R. 2011. Redescription of Platygyndes Roewer 1943, a false Gonyleptidae, (Arachnida, Opiliones, Cosmetidae). ZooKeys 143: 1–12. https://doi.org/10.3897/zookeys.143.1916

Roewer C.F. 1912. Die Familie der Cosmetiden Opiliones-Laniatores. Archiv für Naturgeschichte Abteilung A 78 (10): 1–122.

Roewer C.F. 1923. Die Weberknechte der Erde. Systematische Bearbeitung der bisher bekannten Opiliones. Gustav Fischer, Jena.

Roewer C.F. 1928. Weitere Weberknechte II. (2. Ergänzung der Weberknechte der Erde, 1923). Abhandlungen des Naturwissenschaftlichen Vereins zu Bremen, 26 (3): 527–632.

Roewer C.F. 1947. Diagnosen neuer Gattungen und Arten der Opiliones Laniatores (Arachn.) aus C.F. Roewer’s Sammlung im Senckenberg-Museum. 1. Cosmetidae. [Weitere Weberknechte XII]. Senckenbergiana 28 (1/3): 7–57.

Simon E. 1879. Essai d’une classification des Opiliones Mecostethi. Remarques synonymiques et descriptions d’espèces nouvelles. Première partie. Annales de la Société entomologique de Belgique 22: 183–241.

Simon E. 1880. Premier supplément au travail intitulé essai d’une classification des Opiliones Mecostethi, etc. (première partie). Comptes rendus des séances de la Société entomologique de Belgique 1880: 100–103.

Soares H.E.M. 1970. Novas espécies de opiliões da Região Amazônica (Opiliones, Cosmetidae, Gonyleptidae, Phalangiidae, Stygnidae). Revista Brasileira de Biologia 30 (3): 323–338.

Sørensen W.E. 1932. Descriptiones Laniatorum (Arachnidorum Opilionum Subordinis). Opus posthumum recognovit et edidit Kai L. Henriksen. Det Kongelige Danske Videnskabernes Selskabs Skrifter 3: 197–422.

Wood Jr. H.C. 1869. On the Phalangia and Pedipalpi collected by Professor Orton in Western South America, with the description of new African species. Transactions of the American Philosophical Society 13: 435–442. https://doi.org/10.5962/bhl.title.4003

Published
2020-04-24
How to Cite
Medrano, M., Ázara, L. N. de, & Kury, A. B. (2020). The short-legged Andean cosmetids revisited: the genus Libitia Simon, 1879 with description of two new species (Opiliones, Cosmetidae). European Journal of Taxonomy, (634). https://doi.org/10.5852/ejt.2020.634
Issue
No. 634 (2020): The short-legged Andean cosmetids revisited: the genus Libitia Simon, 1879 with description of two new species (Opiliones, Cosmetidae)
Section
Zoology

Copyright (c) 2020 Miguel Medrano, Ludson Neves de Ázara, Adriano Brilhante Kury

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons Copyright Notices

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are NOT ALLOWED TO post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to taxonomic issues.