The genus Grammostola Simon 1892 (Araneae: Theraphosidae): a new species from western Argentina, new synonymy and distributional data Author Ferretti, Nelson Centro de Estudios Parasitológicos y de Vectores CEPAVE (CCT- CONICET- La Plata) (UNLP), La Plata, Argentina; Author Pompozzi, Gabriel Dpto. de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina; Author González, Alda Centro de Estudios Parasitológicos y de Vectores CEPAVE (CCT- CONICET- La Plata) (UNLP), La Plata, Argentina; Author Pérez-Miles, Fernando Facultad de Ciencias, Sección Entomología, Montevideo, Uruguay text Journal of Natural History 2013 2013-07-22 47 47 - 48 2961 2977 journal article 10.1080/00222933.2013.791945 1464-5262 5198177 Grammostola chalcothrix Chamberlin 1917 Grammostola chalcothrix Chamberlin 1917: 46 , pl. 3, figs 5–7; Schiapelli and Gerschman, 1961: 203 figs 11, 12 (removed from G. iheringi ); Smith, 1986: 62 , fig. 86; Smith, 1987: 62 , fig. 86; Peters, 2000: 133 , fig. 411; Schmidt, 2003b: 165 , fig. 370; Peters, 2003: 186 , figs 744, 745. Grammostola iheringi Bücherl 1951: 120 (subsequently rejected). Type material Holotype : male: ARGENTINA : Rosario, Davis leg., no date ( MCZ 41 ), examined. Other material examined ARGENTINA : Chaco Province : 1 ♂ , General Pinedo , 1946, Cranwell , Seria and Guidi legs. (MACN-Ar, without number). Córdoba Province : 2 ♂ , Agua de Oro , March 1940 , De Carlo leg. (MACN-Ar, without number) ; 1 ♂ , Ascochinga , March 1966 , J. Fernández leg. (MACN-Ar, without number) ; 1 ♂ , Arroyito , no date, no collector data (MACN-Ar, without number) ; 3 ♂ , Calamuchita , March 1957 , Viana leg. (MACN-Ar, without number) ; 1 ♂ , Córdoba , January 1956 , Leuget leg. (MACN-Ar, without number) ; 1 ♂ , same locality, January 1997 , no collector data (MACN-Ar, without number) ; 1 ♂ , General Deheza , 22 October 1961 , no collector data (MACN-Ar, without number) ; 1 ♂ , Laguna de Pocho , 2 February 1943 , no collector data (MACN-Ar) ; 1 ♂ , Los Cocos , September 2007 , Rumboll leg. (MACN-Ar, without number) ; 2 ♂ , Lucio Mansilla , 12 November 1959 , no collector data (MACN-Ar, without number) ; 1 ♂ , Miramar , 23 September 1959 , Salvetti leg. (MACN-Ar, without number) ; 1 ♂ , Villa Carlos Paz , March 1958 , Ruano leg. (MACN-Ar, without number) ; 1 ♂ , Virgilio , 18 September 1950 , no collector data (MACN-Ar, without number) . La Rioja Province : 1 ♂ , La Rioja , December 1966 , Yiboff leg. (MACN-Ar, without number) ; 1 ♂ , same locality, 1971, no collector data (MACN-Ar, without number) . San Juan Province : 1 ♂ , Valle Fértil , February 1973 , Williner and Viana legs. (MACN-Ar without number) . Santa Fé Province : 2 ♂ , El Nochero , 31 September 1962 , no collector data (MACN-Ar, without number) ; 1 ♂ , Las Rosas , November 1966 , Napp leg. (MACN-Ar without number) . Santiago del Estero Province : 2 ♂ , Campo Gallo , December 1940 , Ávalos leg. (MACN-Ar without number) ; 6 ♂ , Santiago del Estero , no date, Gómez leg. (MACN-Ar, without number) ; 1 ♂ , same locality, 2 April 1936 , D. Sessim leg. (MACN-Ar, without number) ; 1 ♀ , same locality, 2 August 1973 , Yiboff leg. (MACN-Ar, without number) ; 2 ♂ , Colonia Dora , Decemeber 1940, Birabén leg. (MACN-Ar without number) ; 1 ♂ , La Puerta , September 1945 , Jiménez leg. (MACN-Ar, without number) ; 1 ♂ , Los Juríes , December 1940 , Ávalos leg. (MACN-Ar without number) . Diagnosis Grammostola chalcothrix can be recognized by the following combination of characters: presence of long spiniform setae on prolateral and retrolateral coxal aspects of legs I–III, prolateral coxae IV and retrolateral palpal maxillae; male palpal bulb pyriform with PI developed and PS well developed, slightly curved and very long embolus ( Figure 4A, B ); two long and curved spermathecal receptacles ( Schiapelli and Gerschman 1961 ). Figure 4. Grammostola chalcothrix (A, B): (A) Male (MCZ 41), palpal bulb, retrolateral; (B) male (MCZ 41), palpal bulb, prolateral. Grammostola inermis (C, D): (C) Male (MLP 14605), palpal bulb, retrolateral; (D) male (MLP 14605), palpal bulb prolateral. Distribution Previously known from Santa Fé (Rosario) and Córdoba Province with no locality data ( Schiapelli and Gerschman 1961 ; Schmidt 1999 ). In this contribution ( Figure 5A ): southern Chaco Province , central Santiago del Estero Province , Córdoba Province (mountain ranges and meadows) and southern Santa Fé Province , comprising the regions of dry Chaco , Espinal and Pampa. To the west, it is also present in La Rioja and San Juan Provinces, at the limits of dry Chaco and Monte regions ( Figure 5B ).