Scytodes genebra, Rheims, Cristina A. & Brescovit, Antonio D., 2009

Rheims, Cristina A. & Brescovit, Antonio D., 2009, New additions to the Brazilian fauna of the genus Scytodes Latreille (Araneae: Scytodidae) with emphasis on the Atlantic Forest species, Zootaxa 2116, pp. 1-45 : 27-28

Scytodes genebra new species

Figs. 94–96

Type material: Holotype: female from Mata Santa Genebra , Campinas [22°53' S; 47°04' W], São Paulo, Brazil, 15 October 1998, deposited in IBSP 35148.

Paratype: BRAZIL. São Paulo: Jundiaí (Reserva Biológica Municipal da Serra do Japi) [23°13' S; 46°56' W], 1Ƥ, 6–10 August 2001, Equipe Biota ( IBSP 92452).

Etymology. The specific name is a noun in apposition that refers to the type locality of the holotype.

Diagnosis. Females of S. genebra n.sp. are distinguished from those of the remaining Neotropical Scytodes by the oval hyaline pockets with a large sclerotized area at the base ( Fig. 96 ).

Description. Male unknown.

Female (Holotype, IBSP 35148) Carapace pale orange, lighter at center, with brown pattern as shown on Fig. 94 . Chelicerae pale orange with dorsal, longitudinal brown stripe. Pedipalps pale yellow with prolateral brown stripe. Labium and endites pale yellow, distally cream colored. Sternum cream colored with slightly darker margins and black borders in front of each coxae. Legs pale yellow. Femora I–IV with pair of longitudinal, ventral brown stripes. Tibiae and metatarsi I–IV distally brown. Abdomen pale yellow with faint black pattern ( Fig. 94 ). Total length 5.4. Carapace domed, 2.8 long, 2.2 wide. Eye diameters: PME 0.14, ALE 0.14, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and inconspicuous stridulatory ridges. Labium 0.24 long, 0.28 wide. Sternum 1.32 long, 1.1 wide. Leg measurements: I: femur 5.8, patella 0.9, tibia 6.5, metatarsus 8.3, tarsus 1.2, total 22.7; II: 4.5, 0.9, 4.6, 5.5, 1.0, 16.5; III: 4.0, 0.9, 2.7, 3.5, 1.0, 12.1; IV: 4.6, 0.9, 4.3, 4.9, 1.0, 15.7. Palpal femur with stridulatory pick short and stout with rounded and projected socket. Epigynum with small positioning ridges with two to three ridges, separated from each other by 4–5 times their width ( Fig. 95 ). Vulva with globose spermathecae on narrow stalks adjacent to oval hyaline pockets ( Fig. 96 ). Abdomen 2.5 long, 2.0 wide, covered with slender hairs.

Distribution. Atlantic Forest. State of São Paulo.

Figures

FIGURES 94 – 105. 94 – 96. Scytodes genebra n. sp. 94. Female habitus, dorsal. 95 – 96. Female epigynum (95 ventral, 96 dorsal). 97 – 99. Scytodes itapecerica n. sp. 97. Female habitus, dorsal. 98 – 99. Female epigynum (98 ventral, 99 dorsal). 100 – 105. Scytodes antonina n. sp. 100. Male habitus, dorsal. 101 – 103. Left male palp (101 prolateral, 102 retrolateral, 103 detail of distal region, dorsal). 104 – 105. Female epigynum (104 ventral, 105 dorsal) (EP = epigynal pouch; H = hyaline membrane; HP = hyaline pocket; S = spermathecae; AS = sclerotized área; SP = sclerotized process). Scale lines: 0.5 mm.