Grammostola vachoni Schiapelli and Gerschman 1961

Ferretti, Nelson, Pompozzi, Gabriel, González, Alda & Pérez-Miles, Fernando, 2013, The genus Grammostola Simon 1892 (Araneae: Theraphosidae): a new species from western Argentina, new synonymy and distributional data, Journal of Natural History 47 (47 - 48), pp. 2961-2977 : 2967-2968

Grammostola vachoni Schiapelli and Gerschman 1961

Grammostola vachoni Schiapelli and Gerschman 1961: 204 , figs 5, 6; Schmidt 2003a:

12, figs 1–3; Ferretti et al. 2011: 8, figs 3–7, 10–14, 16–17, 19, 21–22, 26–28. Grammostola fossor Schmidt, 2001: 3 , figs 4–7. New synonymy.

Type material

Grammostola vachoni : Holotype: male: ARGENTINA, Tandil, Buenos Aires, 26 April 1950, St. B. Andrae leg. (MACN-Ar 7152), examined. Grammostola fossor : Holotype: male: ARGENTINA, Río Negro (40 ◦ 40 ′ S, 68 ◦ 0 ′ W), Cerro Colorado, Sierra Colorada, 1998, Soraka leg. ( SMF 39213), examined .

Other material examined

ARGENTINA: Córdoba Province: 1 ♀, Córdoba capital, January 1956, Leuget leg. (MACN-Ar 634) ; 1 ♂, Los Cocos , March 1956, Jacubsen leg. (MACN-Ar, without number) ; 1 ♂, Miramar , 12 September 1960, Salvetti leg. (MACN-Ar 111) ; 1 ♂, Punilla , November 1966, Martinez leg. (MACN-Ar, without number) . La Rioja Province: 1 ♂ , Iliar , February 1941, Gomez leg. (MACN-Ar 113) ; 1 ♂, La Rioja capital, December 1966, Yiboff leg. (MACN-Ar, without number) ; 1 ♂, Patquía , May 1966, Yiboff leg. (MACN-Ar, without number) . Mendoza Province: 1 ♀ , Agreló , March 1946, no leg. (MACN-Ar 828) ; 1 ♀, Dept. Lavalle , 3 January 1941, Willink leg. (MACN-Ar 817) . San Luis Province: 1 ♂ , Naschel , November 1964, Luchini leg. (MACN-Ar, without number) ; 1 immature, Río Quinto, Saladillo , 21 November 1964, García, Funes and Casal legs. (MACN-Ar, without number) ; 1 ♂, San Jerónimo , November 1973, Williner and Viana legs. (MACN-Ar, without number) ; 1 ♂, San Jerónimo , January 1974, Viana and Williner legs. (MACN-Ar, without number) . Santiago del Estero Province: 1 ♂ , Sol de Julio , no date, Campos leg. (MACN-Ar, without number) . Río Negro Province: 2 ♀ , Lamarque ( Choele Choel ), 15 December 1959, Fritz leg. (MACN-Ar, without number) .

Diagnosis

Grammostola vachoni can be recognized by the following combination of characters: presence of short stiff and 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 narrow bulb base, PI and PS developed, curved and long embolus, bent at the mid portion and strongly bent at the apical portion ( Figure 3A, B ); two short and curved spermathecal receptacles; coloration (in vivo) black with prominent lines on patella and numerous long yellowish setae on ventral faces of all legs ( Ferretti et al. 2011) ( Figure 3D ).

Remarks

The male holotype of G. fossor has all characteristics of G. vachoni : the spurs of the tibial apophyses of the male and the palpal bulb morphology; the presence of short and long spiniform setae on prolateral and retrolateral coxal faces of legs I–III, prolateral coxae IV and retrolateral palpal maxillae. Hence, we decided to propose Grammostola fossor Schmidt 2001 as a junior synonym of Grammostola vachoni Schiapelli and Gerschman 1961 .

Distribution

Previously known from mountains and southeast of Córdoba, Mendoza; in hilly systems of Ventania and Tandilia and meadows in southern Buenos Aires Province; in a hilly system of La Pampa; north and central Río Negro ( Figure 3E ) and northeast of Chubut ( Ferretti et al. 2011). In this contribution: south of Santiago del Estero Province, where some of the mountainous system of the Sierras Pampeanas extended to this Province; mountainous systems of La Rioja Province and San Luis Province ( Figure 3C ).

Figures

Figure 3. Grammostola vachoni. (A) Male (MACN-Ar 7152), palpal bulb, retrolateral; (B) male (MACN-Ar 7152), palpal bulb, prolateral; (C) distribution map; white dots = previous distributional data from Ferretti et al. (2011) and black dots = new distributional data; black cross = type locality of Grammostola fossor; (D) live habitus of adult male Grammostola vachoni. Scale bar = 1 cm. (E) Habitat of G. vachoni in Río Negro Province, Argentina, area next to the type locality of G. fossor. Photo: M. Sotelo.