Guadana tambopata, Rheims, 2010

Rheims, Cristina Anne, 2010, A new genus of huntsman spiders from the Neotropical region (Araneae: Sparassidae: Heteropodinae), Zootaxa 2650 (1), pp. 33-46 : 43-44

Guadana tambopata sp. nov.

Figs 29–33

Type material: Holotype: ♂ from Zona Reservada de Tambopata [1250’ S; 69°17’ W], 30 km SW Maldonado, Madre de Dios, Peru, 6–14 September 1984, T. L. Erwin et al. leg. (USNM) . Paratype: ♀, same data as holotype (USNM) .

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

Diagnosis. Guadana tambopata sp. nov. is distinguished from the remaining species of the genus by the male palps with dorsal branch of the RTA strongly curved ventrally ( Fig. 30 ) and with sickle-shaped DTA with long ventral keel ( Fig. 29 ), by the female epigynum with rimmed lateral borders and median septum with U-shaped flaps ( Fig. 31 ) and vulva with strongly convoluted spermathecae ( Figs 32–33 ).

Description. Male (USNM, holotype): Dorsal shield of prosoma brownish orange with very pale gray markings laterally and pale brown along fovea and thoracic striae. Chelicerae brownish yellow with brown spots at the base of setae. Pedipalps brownish yellow. Legs brownish yellow with brown spots at the base of setae. Sternum pale yellow with pale orange margins. Labium and endites pale orange, orange brown at base. Opisthosoma brownish gray. Dorsally with two pairs of brown, rounded muscular impressions. Ventrally mottled with white spots laterally. Total length 9.6. Prosoma: 4.8 long, 5.0 wide. Opisthosoma: 4.8 long, 3.8 wide. Eye diameters: 0.32, 0.32, 0.22, 0.36; interdistances: 0.20, 0.04, 0.40, 0.36, 0.30, 0.32. Legs: I: 35.6 (8.8, 2.8, 10.0, 10.2, 3.8); II: 38.4 (9.8, 3.4, 11.2, 10.4, 3.6); III: 24.6 (7.0, 2.2, 6.4, 6.6, 2.4); IV: 28.0 (7.4, 2.0, 7.2, 8.0, 3.4). Spination follows the generic pattern. Palp: VTA triangular; RTA with ventral branch conical; embolus very slightly curved retrolaterally with large basal projection, pointing retrolaterally ( Figs 29–30 ).

Female (USNM, paratype): Coloration pattern as in male. Total length 9.2. Prosoma: 4.4 long, 4.6 wide. Opisthosoma: 4.8 long, 4.4 wide. Eye diameters: 0.20, 0.28, 0.18, 0.28; interdistances: 0.28, 0.10, 0.40, 0.46, 0.36, 0.44. Legs: I: 24.0 (6.6, 2.4, 7.0, 5.8, 2.2); II: 25.4 (7.6, 2.4, 7.2, 6.0, 2.2); III: (5.6, 2.0, 5.0, rest of leg absent); IV: 19.4 (5.2, 1.8, 5.8, 4.4, 2.2). Spination follows the generic pattern. Epigynum: epigynal field as long as wide; median septum wider than long; epigynal ledges transversal ( Fig. 31 ). Vulva: copulatory duct extending shortly anteriorly and looping posteriorly towards strongly convoluted spermathecae; fertilization ducts short, hook-shaped and pointing anteriorly ( Figs 32–33 ).

Distribution. Only known from the type locality ( Fig. 39 ).

Figures

FIGURE 39. Distribution records for the species of Guadana gen. nov.

FIGURES 29–33. Guadana tambopata sp. nov. 29–30 Male, left palp (29 ventral, 30 retrolateral view); 31–32 Female (31 epigynum, ventral view, 32 vulva, dorsal view); 33 Schematic course of internal duct system. Scale lines: 0.5 mm.