Stenaelurillus wandae, Logunov, 2020

Logunov, Dmitri V., 2020, Further notes on the genus Stenaelurillus Simon, 1885 from India (Araneae Salticidae), Zootaxa 4899 (1), pp. 201-214 : 210-212

Stenaelurillus wandae sp. nov.

Figures 28–41

Etymology. The species is named in honour of my colleague and friend, Prof Wanda Wesołowska (Wrocław, Poland), for her life-long dedication to jumping spiders and on the occasion of her 70th birthday.

Diagnosis. Stenaelurillus wandae sp. nov. is unique within the genus by the presence of a long, bifurcated, dovetail-shaped retrolateral tibial apophysis ( Figs 36, 37 ). The only other Stenaelurillus species possessing a bifurcated retrolateral tibial apophysis is S. furcatus Wesołowska, 2014 from Namibia (see figs 3A–E in Wesołowska 2014b), but its apophysis is at least two times shorter, with uneven branches of the fork (dorsal branch twice as long as ventral; equally long branches in S. wandae sp. nov., Fig. 36 ). Stenaelurillus furcatus also differs in having a well-developed, narrow distal projection of the salticid radix, which is absent in S. wandae sp. nov. In the shape of the globular receptacles ( Figs 40, 41 ), the female of S. wandae sp. nov. is most similar to that of S. mardanicus Ali & Maddison, 2018 from Pakistan (cf. fig. 26 in Ali & Maddison 2018) and S. arambagensis (Biswas & Biswas, 1992) from India (cf. fig. 8A–C in Prajapati et al. 2016: sub S. dilutus ), but differs from both in the absence of an epigynal pocket (present in both similar species).

Description. Male (Holotype, ZMMU Ta-8128, Figs 28–31 , 36–38 ). Measurements. Carapace: 2.95 long, 2.05 wide, 1.40 high. Abdomen: 2.80 long, 2.00 wide. Ocular area: 1.23 long, 1.70 wide anteriorly, 1.68 wide posteriorly. Cheliceral length 0.60. Clypeal height 0.23. Diameter of AME 0.49. Length of leg segments: I 1.25 + 0.80 + 0.95 + 0.75 + 0.55 (4.30); II 1.50 + 0.70 + 0.85 + 0.75 + 0.55 (4.35); III 2.00 + 1.05 + 1.20 + 1.40 + 0.65 (6.30); IV 1.80 + 0.80 + 1.05 + 1.40 + 0.65 (5.70). Leg formula IV,III,II,I. Leg spination: I: Fm d 0-1-1-4; Pt pr 0-1-0; Tb pr 1-2, v 1-1-2ap; Mt pr 1-1ap, v 2-2ap. II: Fm d 0-1-1-4; Pt pr 0-1-0; Tb pr 1-2, v 1-1-2ap; Mt pr and rt 1-1ap, v 2-2ap. III: Fm d 0-1-2-5; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1, v 1-2ap; Mt d 1-1 pr and rt 1-0-2ap, v 0-2-2ap. IV: Fm d 0-1-2-4; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1, v 1-2ap; Mt d 1-1, pr and rt 1-0-2ap, v 1-1-2-2ap. Colouration (in alcohol; Figs 28–31 ): Carapace yellowish brownish, densely covered with recumbent scales forming colour pattern: eye field and thoracic region dark brown, two longitudinal white stripes running behind PLEs, centrally yellow-brown with marginal yellow band on each side. Clypeus yellow brownish, sparsely covered with long, white setae. Sternum, endites, labium, and chelicerae light yellow. Abdomen: dorsum dark brown, with wide yellow edging at posterior half; sides greyish yellow; venter light yellow. Book-lung covers yellow. Spinnerets brown. All legs yellow, with light brown tint, but all femora brown prolaterally and dorsally. Palps light yellow, but tibiae and patellae dorsally tinged with brown. Palpal structure as in Figs 36–38 : femur without ventral bulge; ventral tibial apophysis present, a rounded bulge, its obtuse tip directed retrolaterad; retrolateral tibial apophysis long and bifurcated at its tip (dovetail-shaped), directed dorso-retrolaterad; dorsal tibial apophysis absent; cymbium elongated, 1.7 times longer than wide, without retrolateral ridge or process; tegular process absent; salticid radix shaped as an inverted droplet, with proximal projection straight, directed proximad and well-developed, finger-shaped distal projection directed apicad; embolus slightly curved, with large elongated base (1.7 times as long as wide).

Female (Paratypes; description based on specimen from ZMMU, figures of that from MMUE). Measurements. Carapace: 3.35 long, 2.28 wide, 1.55 high. Abdomen: 3.50 long, 2.80 wide. Ocular area: 1.35 long, 1.88 wide anteriorly, 1.85 wide posteriorly. Cheliceral length 0.73. Clypeal height 0.25. Diameter of AME 0.50. Length of leg segments: I 1.65 + 0.85 + 0.85 + 0.65 + 0.55 (4.55); II 1.60 + 0.85 + 0.85 + 0.60 + 0.50 (4.40); III 2.30 + 1.25 + 1.45 + 1.70 + 0.70 (6.40); IV 1.85 + 1.05 + 1.45 + 1.90 + 0.80 (7.05). Leg formula IV,III,II,I. Leg spination: I: Fm d 0-1- 1-4; Pt pr 0-1-0; Tb pr 1-1, v 1-2-2ap; Mt pr 1-1ap, v 2-2ap. II: Fm d 0-1-2-4; Pt pr 0-1-0; Tb pr 1-1ap, v 1-1-2ap; Mt pr 1-1ap, v 2-2ap. III: Fm d 0-1-2-5; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-2ap; Mt d 1-1-0, pr and rt 1-0-2ap, v 0-2-2ap. IV: Fm d 0-1-1-5; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-2ap; Mt d 2-2-0, pr and rt 1-0-2ap, v 0-1-2ap. Colouration (in alcohol; Figs 32–35 ): Carapace yellow, densely covered with brown and white recumbent scales; eye field dark brown, remaining parts whitish brown, without pattern. Clypeus yellow, sparsely covered with long white, setae. Sternum, endites, labium and chelicerae light yellow. Abdomen: dorsum brown, with yellow patches and spots as shown in Fig. 33 ; sides and venter yellow, with sparse brown speckles. Book-lung covers light yellow. Spinnerets yellow, tinged with brown. All legs yellow, slightly tinged with brown, but tibiae I brown anteriorly. Palps yellow. Epigyne and vulva as in Figs 39–41 : epigynal plate flat, with pair of round copulatory openings situated less than one diameter from each other; epigynal pocket absent; insemination ducts short, equal to receptacle’s diameter, running proximad, subparallel median line; receptacles globular; fertilization ducts prominent, situated apically of receptacles.

Type material. Holotype ³: INDIA: Odisha: Banigocha-Daspalla , 20.382°N, 84.771°E, leg. K. Tomkovich, 17–25.I.2014 ( ZMMU, Ta-8128).

Paratypes: Same data as for holotype: 22³ 1♀ ( ZMMU, Ta-8129), 2³ 1♀ ( ISEA, 001.8548), 2³ 1♀ ( MMUE, G7644.3 ) .

Distribution. Only the type locality ( Map 1 ).

Figures

MAP 1. Type localities of three Stenaelurillus species from India.

FIGURES 28–35. Stenaelurillus wandae sp. nov. 28–31 Body of ³ holotype (28 dorsal, 29 ventral, 30 lateral, 31 frontal view); 32–35 Body of ♀ paratype (32 frontal, 33 dorsal, 34 lateral, 35 ventral view). Scales: 1 mm.

FIGURES 36–41. Stenaelurillus wandae sp. nov. 36–38 Palp of ³ holotype (36 ventral, 37 retrolateral, 38 embolic division, dorsal view); 39–41 ♀ paratype (39 epigyne, ventral view, 40 vulva, ventral view, 41 same, dorsal view). Scales: 0.1 mm. Ab- breviations: DP—distal projection, E—embolus, PP—proximal projection, RTA—retrolateral tibial apophysis, T—tegulum, VTA—ventral tibial apophysis.