Soesilarishius flagellator, Ruiz, Gustavo Rodrigo Sanches, 2013

Ruiz, Gustavo Rodrigo Sanches, 2013, Nine new species of Soesilarishius from Brazil (Araneae: Salticidae: Euophryinae), Zootaxa 3664 (4), pp. 586-600 : 599-600

Soesilarishius flagellator sp. nov.

Figs 37–38, 40 , 51–56

Type material: Holotype: male from Parque Nacional da Serra das Confusões (Laje), Piauí, Brazil, 9.221ºS, 43.482ºW, 9–15.XII.2010, L.S. Carvalho et al. (MPEG 20295). Paratype: 1 female and 1 male, same data as holotype, MPEG 20296 and CHNUFPI, respectively.

Etymology. The specific epithet is a Latin noun and refers to the person who punishes others with a whip, in allusion to the long, not-coiled embolus ( Figs 51–53 ).

Diagnosis. Males of this species can easily be distinguished from any other by the elongate embolus, not being compacted around the male palp ( Figs 51–53 ). Females are distinguished from others by the very long, spaghettilike copulation ducts ( Fig. 55 ).

Description. Male holotype: Total length: 2.42. Carapace dark brown, 1.33 long, 0.99 wide, 0.66 high, with sparse white scales ( Fig. 37 ). Ocular quadrangle 0.68 long. Anterior eye row 0.99 wide and posterior 0.90 wide. Chelicera, labium and sternum dark brown. Endite dark brown, not projected laterally. Palp with strongly, ventrally curved and acute RTA, slightly elongate tegulum, very long embolus arising at proximal end of tegulum, directing distally by the retrolateral side and curving to the prolateral side, then backwards to the retrolateral side of palp, being uncommonly loose at this area (i.e., not typically resting in the cymbial distal groove) ( Figs 51–53 ). Legs 3412, dark brown; tarsi, metatarsi and trochanter-femur joints yellow. Length of femur: I 0.80, II 0.66, III 0.92, IV 0.76; patella + tibia: I 0.95, II 0.71, III 0.90, IV 0.83; metatarsus + tarsus: I 0.66, II 0.59, III 0.80, IV 0.95. Spination: as in S. cearensis sp. nov. Abdomen dark brown, anterior border covered with sparse white scales; dorsally with a median pair of round, light areas and with a pair of transverse posterior bars that extend posteriorly on the sides, similar to that of the female ( Fig. 37 ). Anterior spinnerets dark brown, others yellow.

Female (paratype): Total length: 3.23. Carapace light brown, 1.35 long, 0.99 wide, 0.68 high, with cephalic region dark brown and sparse white scales ( Fig. 39 ). Ocular quadrangle 0.71 long. Anterior eye row 0.99 wide and posterior 0.90 wide. Chelicera, endite, labium, sternum and palp yellow. Legs 4312, yellow; distal femur IV, proximal tibia IV and proximal metatarsus IV dark brown. Length of femur: I 0.76, II 0.61, III 0.83, IV 0.78; patella + tibia: I 0.90, II 0.71, III 0.90, IV 0.90; metatarsus + tarsus: I 0.85, II 0.61, III 0.80, IV 0.95. Spination as in male. Abdomen as in male ( Figs 38, 40 ), except for the venter, cream-colored. Epigyne with slightly advanced, wide pocket, a pair of anterior large copulatory openings connecting to very long copulation ducts, whose initial portion curls superficially beneath the ventral, median surface of the epigyne and the inner portions are thinner and more compactly arranged on the sides, leading to almost unmodified spermathecae, from which fertilization ducts emerge beside nutritive pores ( Figs 54–56 ). Spinnerets light brown.

Distribution. Known only from the State of Piauí, Brazil.

Figures

FIGURES 34 – 40. Soesilarishius cearensis sp. nov. 34 male habitus; 35 female habitus; 39 female, lateral view. Soesilarishius bicrescens sp. nov. 36 male habitus. Soesilarishius flagellator sp. nov. 37 male habitus; 38 female habitus; 40 female, lateral view.

FIGURES 51 – 56. Soesilarishius flagellator sp. nov. 51 – 53 left male palp (51 prolateral, 52 ventral, 53 retrolateral); 54 epigyne, ventral view; 55 vulva, dorsal view, cleared; 56 sperm path in the epigynal ducts, dorsal view.