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Type: Article
Published: 2008-10-27
Page range: 54–68
Abstract views: 133
PDF downloaded: 1

Ami, a new Theraphosid genus from Central and South America, with the description of six new species (Araneae: Mygalomorphae)

Sección Entomología, Facultad de Ciencias, Iguá 4225, 11400 Montevideo, Uruguay
c/o Hope Entomological Collections, Oxford University Museum of Natural History, Parks Road, Oxford, OX1 3PW, United Kingdom
Departamento de Zoologia, Museu Paraense Emílio Goeldi, Av. Magalhães Barata, 376, Caixa Postal 399, 66040-170, Belém, PA, Brazil
Departamento de Zoologia, Museu Paraense Emílio Goeldi, Av. Magalhães Barata, 376, Caixa Postal 399, 66040-170, Belém, PA, Brazil
23A Roumania Crescent, Llandudno, North Wales, LL30 1UP, United Kingdom
Corporación SurNeotrópica, Bogotá, Colombia
Instituto Butantan, Laboratorio de Imunoquimica, Av. Vital Brazil 1500, 05503-900, São Paulo, SP, Brazil
Araneae Tarantula spider Neotropics systematics urticating hairs

Abstract

A new genus Ami Pérez-Miles is proposed for six new species: A. caxiuana Pérez-Miles, Miglio & Bonaldo, from Caxiuanã National Forest, Pará, Brasil, the type species; A. yupanquii Pérez-Miles, Gabriel & Gallon, from the area of Puyo, Equador; A. bladesi Pérez-Miles, Gabriel & Gallon, from Isla Colón, Panamá; A. pijaos Jimenez & Bertani, from Ibagué, Tolima, Colombia; A. amazonica Jimenez & Bertani, from Leticia, Amazonas, Colombia; and A. weinmanni PérezMiles, from La Azulita, Apure, Venezuela. Avicularia obscura (Ausserer 1875) is transferred to Ami and re-diagnosed. Diagnostic characters of Ami are the modification of Type I urticating hairs, with unusually longer area b, and one or two subconical processes on retrolateral face of male palpal tibiae. Females of Ami differ further from those of other theraphosid genera by their highly characteristic spermathecae: paired ventral receptacles attached to an almost discrete, semicircular, sclerotized back-plate.

References

  1. Ausserer, A. (1875) Zweiter beiträge zur Kenntniss der Arachniden–Familie der Territelariae Thorell (Mygalidae Autor.). Verhandlungen zoologisch–botanischen Gesellschaft in Wien, 2, 125–204.

    Bertani, R. (2000) Male palpal bulbs and homologous features in Theraphosinae, (Araneae, Theraphosidae). Journal of Arachnology 28, 29–42.

    Bertani, R. (2001) Revision, cladistic analysis, and zoogeography of Vitalius, Nhandu, and Proshapalopus; with notes on other theraphosine genera (Araneae, Theraphosidae). Arquivos de Zoologia 36, 265–356.

    Coddington, J.A. & H.W. Levi. (1991) Systematics and evolution of spiders (Araneae). Annual Review of Ecology and Systematics 22, 565–592.

    Cooke, J.A.L., V.D.Roth & F.H.Miller. (1972) The urticating hairs of theraphosid spiders. American Museum Novitates 2498, 1–43.

    Goloboff, P.A., J.S. Farris & K. Nixon. (2004) T.N.T. Tree analysis using new technology. Programs and documentation, available at http:// www.cladistics.org.

    Guadanucci, J.P.L. (2005) Tarsal scopula significance in Ischnocolinae phylogenetics (Araneae, Mygalomorphae, Theraphosidae). Journal of Arachnology, 33, 456–467.

    Nixon, K.C. & J.M. Carpenter (1993) On outgroups. Cladistics, 9, 413–426.

    Pérez-Miles, F. (1992) Análisis cladístico preliminar de la subfamilia Theraphosinae (Araneae, Theraphosidae). Boletín de la Sociedad Zoológica del Uruguay 7, 11–12.

    Pérez-Miles, F. (1998) A phylogenetic analysis of Theraphosinae (Araneae, Theraphosidae). Abstracts of the XIV International Congress of Arachnology, Chicago, p. 28.

    Pérez-Miles, F. (2000) Iracema cabocla new genus and new species of a theraphosid spider from amazonic Brazil (Araneae, Theraphosidae). Journal of Arachnology 28, 141–148.

    Pérez-Miles, F., S.M. Lucas, P. da Silva & R. Bertani. (1996) Systematic revision and cladistic analysis of Theraphosinae (Araneae: Theraphosidae). Mygalomorph 1, 33–62.

    Pérez-Miles, F., L. Montes de Oca & A. Camargo. (2007) Advances in Theraphosinae phylogeny: a molecular and morphological approach (Araneae, Theraphosidae). Abstracts of the 17th International Congress of Arachnology, Sao Paulo, p.105.

    Platnick, N. I. (2007) The world spider catalog, version 8. American Museum of Natural History, available from http://research.amnh.org/entomology/spiders/catalog/index.html.

    Raven, R.J. (1985) The spider infraorder Mygalomorphae (Araneae): cladistics and systematics. Bulletin of the American Museum of Natural History 182, 1–180.

    Roewer, C.F. 1942. Katalog der Araneae von 1758 bis 1940. Friedlander & Sohn, Bremen, 1040 pp.

    Wilkinson, M. 1994. Common cladistic information and its consensus representation: reduce Adams and reduced cladistic consensus trees and profiles. Systematic Biology 43, 343–368.