Scytodes turvo Rheims & Brescovit, 2009, new species

Scytodes turvo new species

Figs. 157–159

Type material: Holotype: female from Parque Estadual do Turvo [27°00'– 27°20' S; 53°40'– 54°10' W] Derrubadas, Rio Grande do Sul, Brazil, 11–18 January 2002, Equipe Biota, deposited in IBSP 92355. Paratype: BRAZIL. Santa Catarina: Chapecó [27°06'10.5" S; 52°46'48.8" W] (Floresta Nacional de Chapecó), 1Ƥ, I.2003 – XII.2004, M. Scartezini (IBSP 92530).

Etymology. The specific name is a noun in apposition that refers to the type locality of the holotype. Diagnosis. Females of Scytodes turvo n.sp. resemble those of S. apuecatu Rheims & Brescovit by the female epigynum with widely separated, ridged positioning ridges (Fig. 157; Rheims & Brescovit 2006: 302, fig. 33) and rounded spermathecae adjacent to rounded hyaline pockets (Fig. 158; Rheims & Brescovit 2006: 302, fig. 34). They are distinguished by the larger spermathecae and shorter and thicker stalks (Fig. 158). Description. Male unknown.

Female (Holotype, IBSP 92355). Carapace pale orange, lighter at center, with faint brown pattern as shown on Fig. 157. Chelicerae yellow with dorsal, longitudinal, brown stripe. Pedipalps pale yellow. Tibia with a dorsal and prolateral longitudinal brown stripe. Labium cream colored, brown at base. Endites cream colored. Sternum cream colored with brown markings in front of each coxae. Legs pale yellow. Femur I-IV with ventral pair of longitudinal, brown stripes. Patella and tibia I–IV with brown distal extremities. Abdomen whitish gray with very faint black pattern (Fig. 157). Total length 6.5. Carapace domed, 2.8 long, 2.5 wide. Eye diameters: PME 0.20, ALE 0.18, PLE 0.16. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.28 long, 0.36 wide. Sternum 1.4 long, 1.1 wide. Leg measurements: I: femur 4.2, patella 0.7, tibia 4.5, metatarsus 5.3, tarsus 0.8, total 15.5; II: 3.3, 0.6, 3.0, 3.7, 0.6, 0.6; III: 2.1, 0.6, 1.7, 2.2, 0.5, 7.1; IV: 3.2, 0.6, 2.9, 3.1, 0.6, 10.4. Palpal femur with stridulatory pick short and stout with triangular and projected socket. Epigynum with ridged positioning ridges, separated from each other by slightly more than three times their width (Fig. 158). Vulva with rounded spermathecae of thick stalks adjacent to rounded hyaline pockets with slightly sclerotized lateral area (Fig. 159). Abdomen 3.5 long, 3.0 wide, covered with slender hairs.

Variation. Three females: total length 5.0–6.5; carapace 2.4–2.8; femur I 3.4–4.2.

Distribution. Atlantic Forest. Known from the states of Santa Catarina and Rio Grande do Sul.