Arctosa sapiranga Silva & Lise 2009

Arctosa sapiranga Silva & Lise 2009 View in CoL

Figs 28‒33 View FIGURE 28 View FIGURE 29 View FIGURE 30 View FIGURE 31 View FIGURE 32 View FIGURE 33 , 66 View FIGURE 66

Arctosa sapiranga Silva & Lise, 2009: 27 View in CoL , figs 124–133. Male holotype from Arroio Feitoria, 29°35'43"S 51°2'56"W, 234 m, Sapiranga   GoogleMaps , Rio Grande do Sul, Brazil, 19.ii.2008, E.L.C. Silva leg., deposited in MCTP 19998, examined. Female paratype, same data, MCTP 19999, examined.

Other material examined. BRAZIL. Tocantins: 1♂, Sandovalandia / Araguaçu , Fazenda Praia Alta II, ca. 10°47'27.99"S 49°37'13.25"W, 186 m, 5–13.vii.2001, L.S.Rocha leg. ( IBSP 12008 View Materials ) GoogleMaps ; Distrito Federal: 1♂, Fercal, Mata (MT-2.6), ca. 15°36'07.14"S 47°52'26.02"W, 909 m, Â.S. Zerbini leg. (UnB 5456) GoogleMaps ; Goiás: 7♂, Cavalcante, Fazenda Miraflores , ca. 13°48'49.78"S 47°25'51.47"W, 804 m, 19.xii.2012, P.C. Motta et al. leg. (UnB 6843) GoogleMaps . Minas Gerais: 1♀, Lavras, Cachoeira de Farias , ca. 17°26'20.81"S 41°50'9.50"W, (soil, riverbank, gallery forest), 931 m, 18.ii.1993, R.L.C. Baptista leg. ( MNRJ 6512 View Materials ) GoogleMaps . São Paulo: 1♂ 1♀, Salesópolis, Estação Biológica de Boracéia , 23°37'51"S 45°52'11"W, (in grasses on the riverside), ~ 983 m, 28.ii–3.iii.1992, R.L.C. Baptista leg. ( MNRJ 6501 View Materials ) GoogleMaps . Paraná: 1♀, Pinhais, ca. 25°23'55.33"S 48°55'36.50"W, Serra da Farinha Seca , 1019 m, 15–20.ix.1995 ( MCTP 7666 View Materials ) GoogleMaps . Rio Grande do Sul: 1♀, Santa Maria, Santo Antão , ca. 29°39'23"S 53°50'49.89"W, ~ 222 m, 2.ii.1989, J.S. Fernandes leg. ( MCTP 39791 View Materials ) GoogleMaps . ARGENTINA. Misiones: 1♀, San Javier, Arroio Guerrero , ca. 27°47'16.28"S 55°9'8.83"W, 106 m, 11–21.iv.1989, Equipe Garabi leg. ( MCTP 3055 View Materials ) GoogleMaps . Entre Ríos: 1♀, Parque Nacional El Palmar, ca. 31°51'51.42"S 58°15'32.41"W, ii.1981, P. Gollobof leg. (MACN-Ar 24197) GoogleMaps .

Emended diagnosis. Males of Arctosa sapiranga resemble Arctosa serii Roth & Brown, 1976 by the similar palea region, but differ by the large, bulging, membranous palea protuberance (Pp) of A. sapiranga ( Figs 29e View FIGURE 29 , 32a View FIGURE 32 ; Silva & Lise 2009: fig. 6, missindicated as term). Additionally, the combination of a triangular posterior arm and bulging retrolateral arm of the median apophysis distinguishes A. sapiranga from A. serii . Females of A. sapiranga are recognized from other neotropical species by a keel on median septum ( Fig. 30a, f, g, i View FIGURE 30 ; Silva & Lise 2009: fig. 9) like Arctosa perita ( Dondale & Redner 1983a: fig. 46) but differs from the latter by the pear-shaped head of spermatheca and very small vulval chamber ( Figs 30e View FIGURE 30 , 33b View FIGURE 33 ).

Description. Male and female were described by Silva & Lise, 2009. However, some remarks are presented here since somatic and genitalic details were passed over or misinterpreted. The median apophysis is not corkscrew shape ( Silva & Lise, 2009; fig. 6) but an excavated triangle ( Figs 28a, f View FIGURE 28 , 31b, e View FIGURE 31 ). Likewise, the structure misnamed as “term” ( Silva & Lise 2009: figs 6, 12) is certainly a pronounced palea protuberance, diagnostic for males of A. sapiranga ( Figs 29e, h View FIGURE 29 , 32a View FIGURE 32 ) and not a terminal apophysis. The conical papilla on the female epigynal plate is visible and richly illustrated here ( Figs 33a, d View FIGURE 33 ).

Variation. As we observed, São Paulo female specimens shown variation in the atrium which was wider than the southern Brazilian specimens ( Figs 30g ‒j View FIGURE 30 ). Male pedipalps present slight variation on posterior arm and retrolateral arm proportions ( Figs 28a–c View FIGURE 28 ) when compared with São Paulo specimens ( Figs 28f–h View FIGURE 28 ). Slight variations on the posterior arm and retrolateral arm of specimens from São Paulo show a smaller projection and a slightly wider base ( Figs 28f‒h View FIGURE 28 ).

Distribution. Brazil ( Rio Grande do Sul, and new records from the states of Tocantins, Distrito Federal, Goiás, Minas Gerais, São Paulo, and Paraná) and Argentina (Misiones and Entre Ríos) ( Fig. 66 View FIGURE 66 ).