Fernandezina tijuca Ramírez & Grismado, 1996

Castro, Diogo, Baptista, Renner, Grismado, Cristian & Ramírez, Martín, 2015, New species and records of Otiothopinae from the Southern Atlantic Rainforest, with notes on the claw tufts in Fernandezina Birabén (Araneae: Palpimanidae), Zootaxa 4012 (3), pp. 465-478 : 474-476

Fernandezina tijuca Ramírez & Grismado, 1996

( Figs 7–8 )

Fernandezina tijuca Ramírez & Grismado, 1996: 118 , figs 1–2 (male holotype from Parque Nacional da Tijuca , Rio de Janeiro, Brazil, deposited in Museo de Zoologia, Universidade de São Paulo, not examined).

Other material examined. BRAZIL: Rio de Janeiro: Casimiro de Abreu: 1 male, BR-101, 22°29’22”S, 42°13’17”W, 5–14 October 2010, Atlantic Rainforest fragment, pitfall trap, D. Castro, P. Castanheira ( UFRJ BRD 0490); 1 male, same data except 4–13 October 2010 ( UFRJ BRD 0515). Macaé: 1 male, Parque Nacional Municipal Fazenda Atalaia , 22°18’32”S, 42°00’07”W, 27 September–4 October 2009, Atlantic Rainforest, pitfall trap, V. Brandão, M. da Costa, G. Cardoso, A. Pérez, G. Marquez ( UFRJ MAC 2076); 1 male, 1 female and 1 juvenile, TECAB, 22°17’20”S, 41°44’04”W, 25–30 March 2010, Atlantic Rainforest fragment, pitfall trap, elevation 30 m, R. Baptista ( MNRJ 06818); 2 males and 1 female, same data exept 20 November 2014, O. Villareal ( UFRJ MAC 8672). Rio de Janeiro: 1 male, Parque Estadual da Pedra Branca, 22°56’12.8”S, 43°26’29.1”W, Atlantic Rainforest, litter, 22 November 2013, elevation 133 m, P. Castanheira ( UFRJ PBR 2139); 1 female and 2 juveniles, same data except 14–22 September 2013, pitfall trap, R. Baptista, P. Castanheira ( UFRJ PBR 2816); 1 female, same data except Camorim, 22°56’12.8”S, 43°26’29.1”W, litter, 31 March 2014, elevation 160 m, R. Baptista ( UFRJ PBR 5767).

Diagnosis. The female is similar to F. jurubatiba by the habitus, size and by the shape of the spermathecae, which are globose and contiguous, but can be distinguished by the more expanded anterior portion of the spermathecae ( Fig. 8 a).

Description. Male. See Ramírez and Grismado (1996). Aditional notes: the male pedipalp of the Macaé specimens differs from the type material by the position of the embolus in a more retrolateral position, forming a wider angle with the cymbium, and by the shape of the tibia, which is slightly larger relative to the bulb ( Figs 7 h–j, 8b–c). While the copulatory bulb may be rotated due to a partial expansion of the basal hematodocha, we interpret the size of the tibia as intraspecific variability.

Female (Macaé, MNRJ 06818). Total length 3.00. Carapace 1.37 long, 0.99 wide. Femur I 1.37 long, 0.33 high. Eyes and chelicerae as in male. Sclerotized portions of body as in male ( Fig. 7 a–c); abdominal scutum orange, with lateroventral notches where two oblique, elongated ventral plates (postepigastric scutes) fit, converging posteriorly toward middle of venter, but not touching ( Fig. 7 d). Unsclerotized portion of abdomen as in male ( Fig. 7 a–c). Internal genitalia composed of two large oval spermathecae, touching each other medially, with the anterior portion expanded, bearing conspicuous paired poreplates close to each other ( Fig. 8 a).

Distribution. Brazil, in the state of Rio de Janeiro, and known from Rio de Janeiro, Casimiro de Abreu and Macaé.

Figures

FIGURE 7. Fernandezina tijuca Ramírez & Grismado, 1996, habitus and details of preserved specimens: a – d, female (MNRJ 06818); e – j, male (MNRJ 06818); a, e, dorsal views; b, f, lateral views; c, g, ventral views; d, abdominal ventral scutum; h – j, male left pedipalp; h, prolateral view; i, ventral view; j, retrolateral view.

FIGURE 8. Fernandezina tijuca Ramírez & Grismado, 1996, copulatory organs: a, female (MNRJ 06818), KOH digested internal genitalia, dorsal view (MR = median receptacula, PP = poreplates); b – c, male (MNRJ 06818); b, left pedipalp, retrolateral view; c, same, ventral view.