Acanthoscurria tarda is a species of spider belonging to the family Theraphosidae. It is native to Brazil. This species was described by Pocock in 1903.
References Pocock, R. I. (1903b). On some genera and species of South American Aviculariidae. Ann. Mag. nat. Hist. (7) 11: SpidCat: The World Spider Catalog. Platnick N.I. & Raven R.J., 7 January 2008