Abstract
A taxonomic revision and phylogenetic analysis of the spider genus Epicratinus Jocqué & Baert, 2005 is presented. The phylogenetic analysis is based on a data set including 16 Epicratinus species plus 9 outgroups representing by five related zodariid genera and one of them considered most basal as the root. These taxa were scored for 49 morphological characters. Parsimony was used as the optimality criterion and a sensitivity analysis was performed using different character weighting concavities. Five unambiguous synapomorphies support the monophyly of Epicratinus. Some internal clades within the genus are well-supported and their relationships are discussed. Epicratinus includes 16 species, all with males and females. A species identification key and distribution maps are provided for all. New morphological data are also presented for five previously described species. All 16 species occur only in the New World. The following species are transferred to Epicratinus: E. perfidus (Jocqué & Baert), comb. nov. from Tenedos; Epicratinus perfidus Jocqué & Baert comb. nov. and newly synonymized with E. santacruz Grismado & Izquierdo and this last species is treated as the junior synonym. Epicratinus petropolitanus (Mello-Leitão) has the male described for the first time. The following 11 species are newly described as new: E. zangief sp. nov.; E. pegasus sp. nov.; E. pikachu sp. nov.; E. stitch sp. nov.; E. ehonda sp. nov.; E. anakin sp. nov.; E. vader sp. nov.; E. omegarugal sp. nov.; E. zelda sp. nov.; E. dookan sp. nov. and E. mauru sp. nov., all from Brazil.
References
Agnarsson, I. & Miller, J.A. (2008) Is ACCTRAN better than DELTRAN? Cladistics, 24 (6), 1–7.
https://doi.org/10.1111/j.1096-0031.2008.00229.x
Baehr, B. & Jocqué, R. (1996) A revision of Asteron, starring male palpal morphology. Revue Suisse de Zoologie, Volume Hors Serie, 1, 15–28.
Bremer, K. (1994) Asteraceae: Cladistics and Classification. Timber Press, Portland, Oregon, 752 pp.
Brescovit, A.D. (1996) Revisão de Anyphaeninae Bertkau a nível de gêneros na região neotropical (Araneae: Anyphaenidae). Revista Brasileira de Zoologia, 13, 1–187.
https://doi.org/10.1590/S0101-81751996000500001
Brignoli, P.M. (1982) On a few spiders from China. Bulletin - British Arachnological Society, 5, 344–351.
Cambridge, O.P. (1870) On some new genera and species of Araneida. Proceedings of the Zoological Society of London, 1870, 728−747.
Candiani, D.F., Bonaldo, A.B. & Brescovit, A.D. (2008) Sobre o gênero neotropical Tenedos O. Pickard-Cambridge (Araneae: Zodariidae), com a descrição de três espécies novas. Revista Brasileira de Zoologia, 25, 128–138.
https://doi.org/10.1590/S0101-81752008000100017
Cardoso, P., Pekár, S., Jocqué, R. & Coddington, J.A. (2011) Global patterns of guild composition and functional diversity of spiders. PLoS ONE, 6 (6), e21710.
https://doi.org/10.1371/journal.pone.0021710
Coddington, J.A. & Levi, H.W. (1991) Systematics and evolution of spiders (Araneae). Annual Review of Ecology and Systematics, 22, 565–592.
https://doi.org/10.1146/annurev.es.22.110191.003025
Davies, V.T. (1985) Araneomorphae (in part). Zoological catalogue of Australia, 3, 49–125.
Fitch, W.M. (1971) Toward defining the course of evolution: minimum change for a specific tree topology. Systematic Biology, 20 (4), 406–416.
https://doi.org/10.1093/sysbio/20.4.406
Foelix, R.F. (2011) Biology of Spiders. Oxford University Press, Oxford, 419 pp.
Giribet, G. (2003) Stability in phylogenetic formulations and its relationship to nodal support. Systematic Biology, 52 (4), 554–564.
https://doi.org/10.1080/10635150390223730
Goloboff, P.A. (1993) Estimating character weights during tree search. Cladistics, 9 (1), 93–91.
https://doi.org/10.1111/j.1096-0031.1993.tb00209.x
Goloboff, P.A, Farris, J.S. & Nixon, K.C. (2008) TNT, a free program for phylogenetic analysis. Cladistics, 24 (5), 774–786.
https://doi.org/10.1111/j.1096-0031.2008.00217.x
Goloboff, P.A. & Catalano, S.A. (2016) TNT version 1.5, including a full implementation of phylogenetic morphometrics. Cladistics, 32 (3), 221–238.
https://doi.org/10.1111/cla.12160
Grismado, C.J. & Izquierdo, M.A. (2016) Una nueva especie del género Epicratinus Jocqué & Baert de Bolivia (Araneae: Zodariidae). Revista del Museo Argentino de Ciencias Naturales, Nueva Serie, 18 (1), 75–83.
https://doi.org/10.22179/REVMACN.18.445
Grismado, C.J. & Platnick, N.I. (2008) Review of the southern South American spider genus Platnickia (Araneae: Zodariidae). American Museum Novitates, 3625, 1–19.
Jocqué, R. (1986) A revision of the genus Hermippus Simon, 1893 (c Zodariidae). Journal of Natural History, 20, 7–22.
https://doi.org/10.1080/00222938600770021
Jocqué, R. (1991) A generic revision of the spider family Zodariidae (Araneae). Bulletin of the American Museum of Natural History, 201, 1–160.
Jocqué, R. (1999) The new genera Procydrela and Rotundrela, sister taxa for Storenomorphinae and Cydrelinae (Araneae: Zodariidae). Entomologica Scandinavica, 30, 225–240.
https://doi.org/10.1163/187631200X00264
Jocqué, R. & Baert, L. (2002) A revision of the Neotropical spider genera Tenedos O.P.–Cambridge and Ishania Chamberlin (Araneae: Zodariidae). Bulletin de l’Institut Royal des Sciences Naturelles de Belgique Entomologie, 72, 67–173.
Jocqué, R. & Baert, L. (2005) Two new neotropical genera of the spider family Zodariidae (Araneae). Bulletin de l’Institut Royal des Sciences Naturelles de Belgique Entomologie, 75, 119–133.
Jocqué, R. & Henrard, A. (2015) The new spider genus Palindroma, featuring a novel synapomorphy for the Zodariidae (Araneae). European Journal of Taxonomy, 152, 1–33.
https://doi.org/10.5852/ejt.2015.152
Lehtinen, P.T. (1967) Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha. Annales Zoologici Fennici, 4, 199–468.
Levi, H.W. (1965) Techniques for the study of spider genitalia. Psyche, 72, 152–158.
https://doi.org/10.1155/1965/94978
Levi, H.W. (1982) Arthropoda. In: Parker, S.P., (Ed.), Synopsis and classification of living organisms. McGraw-Hill Book Company, New York, pp. 71–96.
Mello-Leitão, C.F. de (1922) Quelques araignées nouvelles ou peu connues du Brésil. Annales de la Societé Entomologique de France, Paris, 91, 209–228.
Mello-Leitão, C.F. de (1940) Arañas de las provincia de Buenos Aires y de las gobernaciones de La Pampa, Neuquén, Río Negro y Chubut. Revista del Museo de La Plata, Nueva Série, Zoología, 2 (9), 3–62.
Nicolet, H. (1849) Arácnidos. In: Gay, C. (Ed.), Historia física y política de Chile Zoología, 3. Gay C, Paris, pp. 319–543.
Nixon, K.C. (2002) Winclada. Version 1.00.08. Available from: http://www.cladistics.com/aboutWinc.htm (accessed 10 September 2017)
Nixon, K.C. & Carpemter, J.M. (1993) On outgroups. Cladistics, 9, 413–426.
https://doi.org/10.1111/j.1096-0031.1993.tb00234.x
Oliveira, L.F.M. & Brescovit, A.D. (2015) A taxonomic revision of the neotropical spider genus Xiruana Brescovit 1997 (Araneae: Anyphaenidae, Anyphaeninae). Zootaxa, 3980 (2), 201–229.
https://doi.org/10.11646/zootaxa.3980.2.3
Pekár, S., Coddington, J.A. & Blackledge, T. (2012) Evolution of stenophagy in spiders (Araneae): evidence based on the comparative analysis of spider diets. Evolution 66 (3), 776–806.
https://doi.org/10.1111/j.1558-5646.2011.01471.x
Pekár, S. & Lubin, Y. (2003) Habitats and interspecific associations of zodariid spiders in the Negev (Araneae: Zodariidae). Israel Journal of Zoology, 49 (4), 255–267.
Petrunkevitch, A. (1925) Arachnida from Panama. Transactions of the Connecticut Academy of Arts and Sciences, New Haven, 27, 51–248.
Ramírez, M.J. (2003) The spider subfamily Amaurobioidinae (Araneae: Anyphaenidae): A phylogenetic revision at the generic level. Bulletin of the American Museum of Natural History, 277, 1–262.
https://doi.org/10.1206/0003-0090(2003)277<0001:TSSAAA>2.0.CO;2
Ramírez, M.J. (2014) The morphology and phylogeny of dionychan spiders (Araneae: Araneomorphae). Bulletin of the American Museum of Natural History, 390 (1), 1–374.
Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Available from: https://www.simplemappr.net/ (accessed 7 September 2019)
Simon, E. (1870) Sur les araneides de la famille des Enydes qui habitant l’Espagne et le Maroc. Revue et Magasin de Zoologie Pure et Appliquée, Series 2, 22, 51–54 + 97–103 + 142–148.
Simon, E. (1873) Aranéides nouveaux ou peu connus du midi de l’Europe. (2e mémoire). Mémoires de la Société Royale des Sciences de Liège, Series 2, 5, 1–174.
https://doi.org/10.5962/bhl.title.124166
Simon, E. (1874) s.n. Les arachnides de France, 1, 1–272.
Simon, E. (1893) s.n. Histoire naturelle des araignées, 1, 257–488.
https://doi.org/10.5962/bhl.title.51973
Thorell, T. (1869) On European spiders. Part I. Review of the European genera of spiders, preceded by some observations on zoological nomenclature. Nova Acta Regiae Societatis Scientiarum Upsaliensis, Series 3, 7, 1–108.
Thorell, T. (1881) Studi sui Ragni Malesi e Papuani. III. Ragni dell’Austro Malesia e del Capo York, conservati nel Museo civico di storia naturale di Genova. Annali del Museo Civico di Storia Naturale di Genova, 17, 1–727.
World Spider Catalog (2020) World Spider Catalog. Version 21.5. Natural History Museum Bern, Bern. Available from: http://wsc.nmbe.ch (accessed 22 July 2020)