Rhyssoleptoneta lishan Tong, 2024

Li, Shuhui, Chen, Qiang & Tong, Yanfeng, 2024, Four new species of leptonetid spiders (Araneae, Leptonetidae) from Anhui Province, China, ZooKeys 1218, pp. 99-119 : 99-119

Rhyssoleptoneta lishan Tong sp. nov.

Figs 10 , 11 , 12 , 13 D , 14

Type material.

Holotype China • ♂ ( SYNU -1163 ); Anhui, Chizhou City, Guichi District, Lishan Village ; 30°36'28"N, 117°30'12"E, 20 m; 14.I.2022; H. Fu & K. Yang leg. Paratype: China • 1 ♀ ( SYNU -1164 ), same data as holotype .

Other material examined.

China • 3 ♀; Anhui, Chizhou City, Guichi District, Santaishan Park ; 30°39'34"N, 117°28'21"E, 30 m; 13.I.2022; H. Fu & K. Yang leg.

Etymology.

The specific name refers to the type locality and is a noun in apposition.

Diagnosis.

This new species is similar to Rhyssoleptoneta aosen ( Zhu and Li 2021: figs 9 A – D, 10 A – C) in the scape of female genital area, but can be distinguished by the chelicerae with eight promarginal teeth and by the stridulatory file on the lateral margin (Fig. 13 D ) vs. seven promarginal teeth and lacking the stridulatory file, palpal bulb with membranous median outgrowth, without tooth-shaped projections (Fig. 11 D, E ) vs. without median outgrowth but with three tooth-shaped projections, and the short projection of the palpal tarsus distally (Fig. 11 E ) vs. on the middle area.

Description.

Male (holotype). Habitus as in Fig. 10 A, B . Total length 1.31. Carapace 0.62 long, 0.50 wide. Abdomen 0.67 long, 0.45 wide. Eye sizes and interdistances: ALE 0.06, PLE 0.06, PME 0.04; ALE – PME 0.06, PLE – PLE 0.06, PLE – PME 0.02; AER 0.10, PER 0.12. Carapace light yellow. Median groove, cervical grooves and radial furrows indistinct. Chelicerae with eight large promarginal and four small retromarginal teeth, with stridulatory file on the lateral margin. Labium rectangular; endites with serrula anterolaterally; sternum whitish, longer than wide, heart shaped, smooth. Abdomen whitish, ovoid, with four dark chevron-shaped stripes. Leg measurements: I 2.51 (0.70, 0.19, 0.68, 0.55, 0.39); II 2.11 (0.59, 0.19, 0.53, 0.45, 0.35); III 1.80 (0.51, 0.17, 0.45, 0.40, 0.27); IV - (-, -, -, -, -). Male palp (Figs 11 A – E , 12 A – D ): femur without long spines; tibia without special projection; tarsus wide, not branched distally, with a short projection and a long spur distally; bulb complex, wrinkled on prolateral surface, with 3 spine-like prolateral sclerites, with a membranous median outgrowth and belt-like median sclerite; embolus triangular.

Female (paratype). Similar to male in general features. Habitus as in Fig. 10 C, D . Total length 1.23. Carapace 0.54 long, 0.45 wide. Abdomen 0.80 long, 0.52 wide. Eye sizes and interdistances: ALE 0.05, PLE 0.05, PME 0.04; ALE – PME 0.06, PLE – PLE 0.05, PLE – PME 0.02; AER 0.09, PER 0.11. Leg measurements: I 1.95 (0.55, 0.15, 0.54, 0.38, 0.33); II 1.63 (0.43, 0.15, 0.44, 0.32, 0.29); III 1.44 (0.39, 0.15, 0.32, 0.31, 0.27); IV 2.11 (0.62, 0.16, 0.59, 0.43, 0.31). Genital area (Fig. 10 E ) with a scape on the posterior edge. Internal genitalia (Fig. 10 F ) with a pair of coiled spermathecae and sperm stalk; atrium triangular.

Distribution.

China (Anhui).

Figures

Figure 10. Rhyssoleptoneta lishan sp. nov. A, B male habitus, dorsal and ventral views C, D female habitus, dorsal and ventral views E, F genitalia, ventral and dorsal views. Abbreviations: at = atrium; sc = scape; sp. = spermathecae; ss = spermathecal stalk. Scale bars: 0.4 mm (A – D), 0.1 mm (E, F).

Figure 11. Rhyssoleptoneta lishan sp. nov. A, B, C left palp, prolateral, dorsal and retrolateral views, arrow shows the short projection D, E detail of palpal bulb, prolateral and retrolateral views. Abbreviations: mo = median outgrowth; ms = median sclerite; pl = prolateral lobe; ps = prolateral sclerite; spr = short projection. Scale bar: 0.1 mm.

Figure 12. Rhyssoleptoneta lishan sp. nov., SEM A, C left palp, prolateral and dorsal views B, D detail of palpal bulb, prolateral and ventral views. Abbreviations: emb = embolus; mo = median outgrowth; ms = median sclerite; pl = prolateral lobe; ps = prolateral sclerite; rl = retrolateral lobe; spr = short projection; ts = tarsal spur. Scale bars: 0.1 mm.

Figure 13. Male left chelicerae, posterior view A Jingneta qishan sp. nov. B Leptonetela jingde sp. nov. C Jingneta wukuishan sp. nov. D Rhyssoleptoneta lishan sp. nov. Arrows show the stridulatory file in B, D. Scale bars: 0.1 mm.

Figure 14. Distribution records of leptonetid spiders from Anhui, China, red circles refer to four new species, green circles indicate four known species 1 Jingneta maculosa 2 Jingneta qishan sp. nov. 3 Jingneta tunxiensis 4 Jingneta wukuishan sp. nov. 5 Leptonetela jingde sp. nov. 6 Leptonetela microdonta 7 Longileptoneta shenxian 8 Rhyssoleptoneta lishan sp. nov.