Scytodes tabuleiro, 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 : 37-39

Scytodes tabuleiro new species

Figs. 130–135

Type material: Holotype: male from Parque Estadual da Serra do Tabuleiro , Paulo Lopes [27°77' S; 48°63' W], Santa Catarina, Brazil, 10–20 January 2002, Equipe Biota, deposited in IBSP 91996.

Paratypes: BRAZIL. Santa Catarina: Bombas, Porto Belo [27°09' S; 48°32' W], 13 4Ƥ, 14 February 1990, A.D. Brescovit (MCN 19444); Florianópolis, Ilha do Arvoredo [27°17' S; 48°21' W] (Reserva Biológica de Arvoredo), 13, 24 October 1997, A.A. Lise ( MCTP 10139); 2Ƥ 1juv., 15–16 April 1994, A.A. Lise ( MCTP 5014); 13, 15–16 April 1995, A.A. Lise ( IBSP 36483); 1Ƥ, 15–16 April 1996, A.A. Lise, ( IBSP 36482); Paulo Lopes [27°77' S; 48°63' W] (Parque Estadual da Serra do Tabuleiro ), 23 4Ƥ, 10–20 January 2002, Equipe Biota, ( MZSP 28962; 28963; 28964; IBSP 91995; 92006).

Other material examined. BRAZIL. Paraná: Três Barras [23°53' S; 51°17' W] (Rio Guarani, Foz do Córrego Três Barras), 4Ƥ, 20–23 February 1993, A.B. Bonaldo (MCN 23186). Santa Catarina: Blumenau [27°01'– 27°06' S; 49°01'– 49°10' W] (Parque Nacional das Nascentes do Ribeirão Garcia), 13, 18 May 2004 – 28 February 2005, R.C. Francisco ( IBSP 91876); Florianópolis [27°34' S; 48°34' W] (Lagoa do Peri), 4Ƥ, 24 May – 12 June 2000, A L.T. Souza ( IBSP 91991; 91990); Ilha do Arvoredo [27°17' S; 48°21' W] (Reserva Biológica de Arvoredo), 13, 4–8 October 1981 ( MCTP); 1Ƥ 2juvs, 4–8 October 1991 ( MCTP 6798); 1Ƥ, 15–16 April 1994, A.A. Lise ( MCTP 5013); 3Ƥ, 15–16 April 1993, A.A. Lise ( MCTP 4076); Santo Amaro da Imperatriz [27°40' S; 48°46' W], 1Ƥ, 30 October 1986, E.H. Buckup (MCN 16029); Paulo Lopes [27°77' S; 48°63' W] (Parque Estadual do Tabuleiro ), 23 19Ƥ, 10–20 January 2003, Equipe Biota ( IBSP 91999–92004; 91992; 92010; 92007; 92013; 91998; 92009; 92011; 91997; 91994;); Imbituba [28°13' S; 48°40' W] (Praia do Rosa), 1Ƥ, 8–15 January 1998, A.B. Bonaldo (MCN 28973). Rio Grande do Sul: Machadinho [27°34' S; 51°40' W], 1Ƥ, 15 February 1989, A B. Bonaldo (MCN 18226); Canela [29°22' S; 50°49' W], 2Ƥ 1juv., 2 March 1976, A.A. Lise (MCN 4164); São Francisco de Paula [29°26' S; 50°34' W], 2Ƥ, 22 January 1981, A.A. Lise (MCN 9517).

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

Diagnosis. Males of Scytodes tabuleiro n.sp. resemble those of S. marlieria n.sp. by the dorso-ventrally narrow distal region of the palp ( Figs. 49–51 , 131–133 ). They are distinguished by the sclerotized process, almost as long as the distal region in S. tabuleiro n.sp. ( Figs. 131–133 ). The females are distinguished from those of the other Neotropical Scytodes by the peculiar shape of the hyaline pockets in the epigynum, with the anterior region bent outwards over the large sclerotized lateral area ( Fig. 135 ).

Description. Male (MCTP). Carapace orange with dark brown pattern as shown on Fig. 130 . Chelicerae orange with median longitudinal brown stripe. Pedipalps orange with prolateral brown stains. Labium orange with large brown stain at base. Endites orange. Sternum pale yellow with brown irregular markings, in front of each coxae and in the center. Legs orange, except patella brown. Femora I-IV with pair of ventral longitudinal brown stripes. Tibiae I-IV with dark brown extremities and a median longitudinal mark. Abdomen gray with black pattern ( Fig. 130 ). Total length 3.8. Carapace slightly domed, 2.0 long, 1.5 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 0.14 long, 0.24 wide. Sternum 1.04 long, 0.90 wide. Leg measurements: I: femur 4.0, patella 0.5, tibia 4.3, metatarsus 5.3, tarsus 0.7, total 14.8; II: 2.8, 0.5, 2.6, 3.2, 0.6, 9.7; III: 1.7, 0.4, 1.6, 1.8, 0.5, 6.0; IV: 2.7, 0.5, 2.3, 2.6, 0.6, 8.7. Palpal femur with long and slender stridulatory pick on triangular projected socket. Cymbium with single, strong, distal spine ( Figs. 131–132 ). Bulb 0.60 long, slightly curved medially, with distal region slightly concave and dorso-ventrally narrow and a prolateral sclerotized process ( Figs. 132–133 ). Abdomen 1.8 long, 1.2 wide, covered with slender hairs.

Female (MCTP 6768). Coloration pattern as in male. Total length 3.9. Carapace domed, 2.2 long, 1.7 wide. Eye diameters: PME 0.10, ALE 0.10, PLE 0.10. Lateral eyes on a tubercle. Chelicerae as in male. Labium 0.16 long, 0.24 wide. Sternum 0.96 long, 0.80 wide. Leg measurements: I: femur 3.5, patella 0.6, tibia 3.7, metatarsus 4.5, tarsus 0.8, total 13.1; II: 2.7, 0.6, 2.4, 3.3, 0.7, 9.7; III: 1.8, 0.5, 1.5, 2.0, 0.6, 5.8; IV: 2.5, 0.5, 2.5, 2.7, 0.7, 8.9. Palpal femur with stridulatory pick as in male. Epigynum with ridged positioning ridges, separated from each other by twice their width ( Fig. 134 ). Vulva with large, rounded spermathecae on very thick and short stalks, adjacent to hyaline pockets, anteriorly bent over a large, lateral, sclerotized area ( Fig. 135 ). Abdomen 1.7 long, 1.4 wide, as in male.

Variation. Ten males: total length 3.1–3.8; carapace 1.7–2.0; femur I 3.7–4.6; bulb 0.50–0.70. Ten females: total length 3.8–5.5; carapace 1.8–2.6; femur I 2.1–3.1.

Distribution. Atlantic Forest. States of Paraná, Santa Catarina and Rio Grande do Sul.

Figures

FIGURES 130 – 140. 130 – 135. Scytodes tabuleiro n. sp. 130. Male habitus, dorsal. 131 – 133. Left male palp (131 prolateral, 132 retrolateral, 133 detail of distal region, dorsal). 134 – 135. Female epigynum (134 ventral, 135 dorsal). 136 – 140. Scytodes maquine n. sp. 136. Male habitus, dorsal. 137 – 138. Left male palp (137 prolateral, 138 retrolateral). 139 – 140. Female epigynum (139 ventral, 140 dorsal) (SP = sclerotized process). Scale lines: 0.5 mm.

FIGURES 44 – 51. 44 – 47. Scytodes mangabeiras n. sp. 44. Male habitus, dorsal view; 45 – 47. Left male palp (45 prolateral, 46 retrolateral, 47 detail of distal region, dorsal). 48 – 51. Scytodes marlieria sp. n. 48. Male habitus, dorsal view; 49 – 51. Left male palp (49 prolateral, 50 retrolateral, 51 detail of distal region, dorsal) (LP = Laminar process; SP = sclerotized process). Scale lines: 0.5 mm.