Otiothops atalaia, 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 : 466-468

publication ID	https://doi.org/ 10.11646/zootaxa.4012.3.3
publication LSID	lsid:zoobank.org:pub:CA20EF27-6C23-4FCA-AD05-BE13D73734F1
DOI	https://doi.org/10.5281/zenodo.6094466
persistent identifier	https://treatment.plazi.org/id/038A8797-1715-361B-FF78-D2C83DBD517A
treatment provided by	Plazi
scientific name	Otiothops atalaia
status	sp. nov.

Treatment

Otiothops atalaia View in CoL sp. n.

( Figs 1–2 View FIGURE 1 View FIGURE 2 )

Type material. Holotype male, Parque Nacional Municipal Fazenda Atalaia , 22°18’32”S, 42°00’07”W, Macaé, Rio de Janeiro, Brazil, 27 September 2009, Atlantic Rainforest, litter, elevation 45 m, V. Brandão, M. da Costa, G. Cardoso, A. Pérez, G. Marquez ( MNRJ 06813). Paratypes: 2 females, same data as holotype except 29 September– 4 October 2009, pitfall trap ( MNRJ 06814).

Other material examined. BRAZIL: Rio de Janeiro: Macaé: 1 male, Parque Nacional Municipal Fazenda Atalaia , 29 September – 4 October 2009, Atlantic Rainforest, pitfall trap, V. Brandão, M. da Costa, G. Cardoso, A. Pérez, G. Marquez ( UFRJ MAC 2075).

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

Diagnosis. The male pedipalp is similar to that of Otiothops macleayi Banks, 1929 by the straight embolus which is branched at the tip (see Platnick 1975, figs 5–8), but can be distinguished by the longer, twisted branching filament, by the less salient embolar insertion on the bulb, and by the more inflated bulb, which is almost the same length as the cymbium ( Figs 1 View FIGURE 1 h–j, 2b–c). The female internal genitalia ( Fig. 2 View FIGURE 2 a) resemble those of O. goytacaz sp.

n. ( Figs 3 View FIGURE 3 d, 4a) by having an anteromedian projection, but differ by having a broader base to this projection, a wider sclerotized area with a ringed texture, and also by having two smaller anterodorsal diverticula (the left one apparently collapsed) arising from the median receptacles ( Fig. 2 View FIGURE 2 a).

Description. Male (holotype). Total length 4.27. Carapace 2.00 long, 1.28 wide. Femur I 1.33 long, 0.57 high. Posterior median eyes almost touching ( Fig. 1 View FIGURE 1 e). Paturon with inconspicuous lateral ridge. Sclerotized portions of body orange brown; abdominal scutum orange brown, unsclerotized portion of dorsal abdomen purplish brown with yellow dots, ventral abdomen lighter and almost uniformly yellowish brown ( Fig. 1 View FIGURE 1 e–g). Tarsi II–IV with claw tufts. Pedipalpal femur not thickened, tibia nearly cup-shaped and almost half palpal bulb size; embolus thin, slightly longer than cymbium, bearing a short membrane at its tip, with a branching twisted distal filament ( Figs 1 View FIGURE 1 h–j, 2b–c).

Female (paratype). Total length 4.10. Carapace 1.96 long, 1.35 wide. Femur I 1.48 long, 0.65 high. Eyes and chelicerae as in male. Cephalothorax lighter than male ( Fig. 1 View FIGURE 1 a–c). Abdominal scutum small, entire, less sclerotized than male, curved, with entire sclerite present behind epigastric furrow (postepigastric scutum) ( Fig. 1 View FIGURE 1 d), unsclerotized portion of abdomen as in male ( Fig. 1 View FIGURE 1 a–c). Tarsi II–IV with claw tufts. Internal genitalia ( Fig. 2 View FIGURE 2 a) composed of two large and globose median receptacles basally joined, each with anterodorsal diverticulum. In front of the vulva there is an anteriorly directed median structure (anteromedian projection), probably an apodeme; poreplates not seen (but absence not confirmed).

Distribution. Known only from the type locality.