Fernandezina jurubatiba, Castro, Diogo, Baptista, Renner, Grismado, Cristian & Ramírez, Martín, 2015

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 : 472-474

Fernandezina jurubatiba sp. n.

( Figs 5–6 , 9 )

Type material. Holotype male, Parque Nacional da Restinga de Jurubatiba , 22°17’08”S, 41°41’56”W, Macaé, Rio de Janeiro, Brazil, 25–30 March 2010, Atlantic Rainforest, restinga, pitfall trap, elevation 30 m, R. Baptista, V. Brandão, D. Castro, M. da Costa, G. Cardoso, A. Pinto, A. Pérez, G. Marquez ( MNRJ 06819). Paratype: 1 female, Parque Nacional da Restinga de Jurubatiba , 22°17’08”S, 41°41’56”W, Macaé, Rio de Janeiro, Brazil, 17 March 2011, Atlantic Rainforest, restinga, litter, elevation 30 m, R. Baptista ( MNRJ 06816).

Other material examined. BRAZIL: Rio de Janeiro: Macaé: 1 male, TECAB, 22°17’08”S, 41°43’54”W, 21 February 2014, Atlantic Rainforest, litter, elevation 30 m, O. Villareal ( MNRJ 06815); 10 males, 3 females and 6 juveniles, same data ( MNRJ 06817); 1 male, Parque Nacional da Restinga de Jurubatiba , restinga, litter, 19 March 2011, R. Baptista ( UFRJ MAC 0679); 1 male and 2 females, same data except pitfall, 25–30 March 2010 ( UFRJ MAC 0614); 1 male and 1 female, TECAB, 22°17’08”S, 41°43’54”W, 27 September 2012, Atlantic Rainforest, litter, elevation 30 m, D. Pedroso, G. Miranda ( UFRJ MAC 1729); 1 male, 1 female and 1 juvenile, same data except 27 February 2013, D. Pedroso ( UFRJ MAC 3381).

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. The male pedipalp resembles the general conformation of F. p el t a Platnick, 1975, F. pulchra and F. maldonado Platnick, Grismado & Ramírez, 1999 by the laminar expansion of the embolus; however, in these species the expansion is prolateral, and the embolus has a basal ledge (see Platnick 1975, figs 86, 87; Platnick et al. 1999, figs 19–21; Piacentini et al. 2013, figs 6c–e;). F. jurubatiba sp. n. is distinguished by having the laminar extension on the retrolateral side of the embolus, and by lacking the basal ledge ( Figs 5 h–j, 6b–c). The female internal genitalia have large, rounded spermathecae as in F. p e l t a, but can be distinguished by having more inflated spermathecae which touch each other medially ( Fig. 6 a).

Description. Male (holotype). Total length 1.87. Carapace 0.93 long, 0.69 wide. Femur I 0.79 long, 0.19 high. Posterior median eyes separated by slightly more than their diameter ( Fig. 5 e). Paturon with inconspicuous lateral ridge. Sclerotized portions of body orange brown ( Fig. 5 e–g); abdominal scutum covering two-thirds of dorsum. Unsclerotized portion of abdomen with a dorsal, purplish brown pattern on a yellow background, forming a yellow ring close to the pedicel ( Fig. 5 e–g). Pedipalpal femur not thickened, tibia globose and almost the same size as the palpal bulb; bulb relatively small, half the length of the cymbium; embolus base rounded, without any ledge, distal half flattened with a retrolateral translucent extension with an irregularly shaped, slightly more sclerotized area ( Figs 5 h–j, 6b–c).

Female (paratype). Total length 2.51. Carapace 1.12 long, 0.80 wide. Femur I 0.89 long, 0.22 high. Leg I with sparse prolateral scopula on tibia, metatarsus and tarsus ( Fig. 9 a, b). Eyes and chelicerae as in male. Sclerotized portions of body orange brown ( Fig. 5 a–c); abdominal scutum orange brown with lateroventral notches where two oblique, elongated ventral plates (postepigastric scutes) fit, converging posteriorly toward middle of venter, but not touching ( Fig. 5 d). Unsclerotized portion of abdomen as in male ( Fig. 5 a–c). Tarsus I without tenent setae ( Fig. 9 a– c), tarsi II–IV with weak claw tufts, those of leg IV composed of only two pseudotenent setae on each side ( Fig. 9 d–g). Internal genitalia with two large, rounded spermathecae, touching each other medially, bearing conspicuous paired poreplates close to each other ( Fig. 6 a).

Distribution. Known only from the type locality.

Figures

FIGURE 5. Fernandezina jurubatiba sp. n., habitus and details of preserved specimens: a – d, female paratype; e – j, male holotype; 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 6. Fernandezina jurubatiba sp. n., copulatory organs: a, female paratype, KOH digested internal genitalia, dorsal view (MR = median receptacula, PP = poreplates); b – c, male holotype; b, left pedipalp, retrolateral view; c, same, ventral view.

FIGURE 9. Fernandezina jurubatiba sp. n., scanning electron micrographs of female (MNRJ 06819) left legs I (a – c) and IV (d – f): a, prolateral view; b, tibia, metatarsus and tarsus, prolateral view; c, claw I, prolateral view; d, claws on tarsus IV, prolateral view; e, claws on tarsus IV, apical view; f, tenent setae on tarsus IV, apical view; g, same, retrolateral view.