Scytodes itapecerica, 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 : 28

Scytodes itapecerica new species

Figs. 97–99

Type material: Holotype: female from Itapecerica da Serra [23°43' S; 46°49' W], São Paulo, Brazil, 19 December 1980, D. Lourenço, deposited in IBSP 19774.

Paratype: BRASIL. São Paulo: Mogi das Cruzes [23°31' S; 46°10' W] (Manuel Ferreira, Biritiba Açu), May 2001, E.K. Kashimata & R. Martins ( IBSP 56458).

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

Diagnosis. Females of S. itapecerica n.sp. are distinguished from those of the remaining Neotropical Scytodes by the very large, partially fused hyaline pockets with rounded lateral sclerotized areas at the base ( Fig. 99 ).

Description. Male unknown.

Female (Holotype, IBSP 19774) Carapace pale orange with dark brown pattern as shown on Fig. 97 . Chelicerae pale orange with longitudinal dorsal brown mark. Pedipalps yellow with prolateral dark brown markings. Labium pale orange, brown at base. Endites uniformly yellow. Sternum cream colored with dark brown, L-shaped markings in front of each coxae. Legs yellow, except patellae, distally dark brown. Femora I–IV with pair of ventral longitudinal brown stripes. Tibiae I–IV with dark brown extremities. Abdomen gray with black pattern ( Fig. 97 ). Total length 5.1. Carapace domed, 2.4 long, 1.9 wide. Eye diameters: PME 0.12, ALE 0.12, PLE 0.14. Lateral eyes on a tubercle. Chelicerae with subapical hyaline keel and seven conspicuous stridulatory ridges. Labium 0.14 long, 0.22 wide. Sternum 1.14 long, 0.98 wide. Leg measurements: I: femur 2.8, patella 0.5, tibia 2.9, metatarsus 3.4, tarsus 0.7, total 10.3; II: 2.2, 0.5, 2.4, 2.5, 0.5, 8.1; III: 1.5, 0.5, 1.3, 1.6, 0.4, 5.3; IV: 2.5, 0.5, 2.2, 2.3, 0.5, 8.0. Palpal femur with stridulatory pick short and stout with triangular and projected socket. Epigynum with narrow stridulatory ridges and triangular foveas separated from each other by their width ( Fig. 98 ). Vulva with small and rounded spermathecae on short and narrow stalks, adjacent to large, partially fused hyaline pockets ( Fig. 99 ). Abdomen 2.7 long, 1.9 wide, covered with slender hairs.

Distribution. Atlantic Forest. Known from the 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.