[Article] Gabriel R. & Longhorn S.J. (2011) Redescription of the holotypes of Mygalarachne

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Gabriel R. & Longhorn S.J. (2011) Redescription of the holotypes of Mygalarachnae Ausserer 1871 and Harpaxictis Simon (1892) (Araneae: Theraphosidae) with rebuttal of their synonymy with Sericopelma Ausserer 1875. Revista Ibérica de Aracnología 19: 157-165


Abstract:
The examination of specimens from various Neotropical tarantula genera (Theraphosidae) indicated the unique nature of monotypic genera Mygalarachnae Ausserer 1871 and Harpaxictis Simon 1892. Review of the both holotypes leads us to argue that Mygalarachnae and Harpaxictis should be removed from their
current synonymy with Sericopelma Ausserer 1875. The presence of type I and III urticating hairs on the holotype specimen of Mygalarachnae firmly place it in the subfamily Theraphosinae and we argue should be restored as a valid genus, so that current placement of “incertae sedis” is inappropriate. The identity of Harpaxictis striatus is less certain, but here removed from synonymy with Sericopelma, and due to a lack of other diagnostic features is suggested as nomen dubium. Possible affinities of Mygalarachne with other valid genera of Theraphosinae are briefly discussed.
 
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