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Zoologia (Curitiba)

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LUCAS, Sylvia M et al. Redescription and new distribution records of Acanthoscurria natalensis (Araneae: Mygalomorphae: Theraphosidae). Zoologia (Curitiba, Impr.) [online]. 2011, vol.28, n.4, pp.525-530. ISSN 1984-4670.

Acanthoscurria natalensis Chamberlin, 1917 is redescribed. The following species are considered junior synonyms of A. natalensis: A. cursor Chamberlin, 1917, A. fracta Chamberlin, 1917, A. rondoniae Mello-Leitão, 1923, A. chiracantha Mello-Leitão, 1923, and A. parahybana Mello-Leitão, 1926. All examined specimens, including the types, share the same general aspect, morphology of the sexual organs, color, and measurements. Acanthoscurria natalensis resembles A. paulensis Mello-Leitão, 1923 and A. chacoana Brèthes, 1909 in the general aspect, size, and by the morphology of the sexual organs: male palpal bulb with embolus ending like a shell, due to the prolateral and superior keels. It can be distinguished from these two species by the less developed keels and the longer embolus. The female resembles A. paulensis and A. chacoana by the fused base of the spermathecae and differs by the more evident lobes, projected from base. The distribution of A. natalensis is expanded to Brazilian states covering the Caatinga and the Cerrado biomes

Keywords : Caatinga; Cerrado; synonymies; taxonomy; Theraphosinae.

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