Vacrothele pseudohunanica, Tang & Wu & Zhao & Yang, 2022

Tang, Ya-Ni, Wu, Ya-Ying, Zhao, Yu & Yang, Zi-Zhong, 2022, Description of a new genus and two new species of the funnel-web mygalomorph (Araneae: Mygalomorphae: Macrothelidae) from China with notes on taxonomic amendments, Zootaxa 5125 (5), pp. 513-535 : 520-523

publication ID	https://doi.org/ 10.11646/zootaxa.5125.5.3
publication LSID	lsid:zoobank.org:pub:6983B9C9-7AD7-49AD-8D4E-C3B4F25B2CEC
DOI	https://doi.org/10.5281/zenodo.6458171
persistent identifier	https://treatment.plazi.org/id/03E32706-3944-FFF2-FF1B-FF2AFCCE2EB0
treatment provided by	Plazi
scientific name	Vacrothele pseudohunanica
status	sp. nov.

Treatment

Vacrothele pseudohunanica View in CoL sp. nov. Chinese name: (njae南ffiǖA)

Figures 5–7 View FIGURE 5 View FIGURE 6 View FIGURE 7 , 15A View FIGURE 15 , 17B View FIGURE 17 , 18B View FIGURE 18 , 19 View FIGURE 19

Type material examined. Holotype male (DUIER-VP11), near ticket gate reservoir dam of Dawei Mountain National Forest Park , Pingbian County, Yunnan Province, China, 22º57′48″N, 103º41′57″E, elevation 1488m, 17 February 2019, coll. by Z. Z. Yang & Y. J. Wang . Paratypes: three males (DUIER-VP12-VP14), nine females [seven juveniles] (DUIER-VP21-VP29), same data as holotype .

Etymology: The specific name is based on the similarity of most morphological characteristics of the new species to those of Vacrothele hunanica ( Zhu & Song, 2000) .

Diagnosis: The new species is similar to V. hunanica ( Zhu & Song, 2000) comb. nov., but can be distinguished by the following characters: male chelicerae with 14 stouter promarginal teeth, basomesally with six smaller teeth, plus 20 tiny teeth ( Fig. 15A View FIGURE 15 ), the promarginal teeth of V. hunanica ( Zhu & Song, 2000) comb. nov. are arranged at big and small intervals ( Fig. 16A View FIGURE 16 ). Embolus basally more incrassate, basal end is not with rounded genal angles compared with V. hunanica ( Zhu & Song, 2000) comb. nov. ( Fig. 3J–L View FIGURE 3 , 6J–L View FIGURE 6 ); the middle part is thicker than in males of V. hunanica ( Zhu & Song, 2000) comb. nov. ( Fig. 6E–G View FIGURE 6 ). Palp tibia with seven short stout dorsal spines, almost arranged in row, which is regular than V. hunanica ( Zhu & Song, 2000) comb. nov. ( Fig. 6J–L View FIGURE 6 ). Leg II tibia spines are stronger and longer. Copulatory duct shorter and basomesally 2 smaller ( Fig. 18B View FIGURE 18 ).

Description: Holotype male. Total length 11.92 (not including chelicerae and spinnerets): cephalothorax 6.24 long, 5.19 wide; abdomen 5.85 long, 3.62 wide. Carapace black, smooth. Fovea transverse. Anterior eye row slightly procurved, posterior eye row recurved. Eye sizes and inter-distances:AME 0.39, ALE 0.33, PME 0.26, PLE 0.33; ALE–AME 0.08, AME–AME 0.19, ALE–PLE 0.09, PLE–PME 0.03, PME–PME 0.62. Eye group 0.77 long, 1.47 wide. Chelicerae black, with 14 stout promarginal teeth, basomesally with 6 smaller teeth, plus 20 tiny teeth ( Fig. 15A View FIGURE 15 ). Labium, maxillae, light black, ventral with dark brown bristles and triangular patch of cuspules in proximal anterior corner of heel ( Fig. 6C View FIGURE 6 ); maxillae area length 1.89, and cuspules area length 1.16. Sternum brownish black, cordate, with 3 pairs of sigilla ( Fig. 6D View FIGURE 6 ). Palp: light black, tibia incrassate, 1.97 long, with 7 stout dorsal spines ( Fig. 6J–L View FIGURE 6 ); embolus bending, distal end trumpet-shaped, 4.82 long ( Fig. 6E–H View FIGURE 6 ). Legs light black, hairy.

Spines. Leg I: tibia 2 prolateral, 3 ventral; metatarsus 1 ventral and two groups of ventral spiny plexus near distad, among them, each group of two spines, respectively; tarsus 5 prolateral, 4 retrolateral. Leg II: femur 1 prolateral 2 near distad, 3 dorsal; patella 2 prolateral; tibia 1 prolateral, and 5 strong ventral ( Fig. 17B View FIGURE 17 ); metatarsus 1 dorsal, 5 ventral, two groups ventral spiny plexus near distad, prolateral group of 3, retrolateral group of 2; tarsus 4 prolateral and 4 retrolateral. Leg III: femur 1 dorsal; patella 5 prolateral; tibia 2 prolateral, 3 retrolateral, 1 dorsal and 4 ventral; metatarsus 1 dorsal, 5 ventral, 4 prolateral, and two groups of ventral spiny plexus near distad, among them, prolateral group of 2, retrolateral group of 3 (one especially strong); tarsus 7 prolateral, 9 retrolateral. Leg IV: femur 1 prolateral; patella 2 prolateral; tibia 3 prolateral, 2 retrolateral, 5 ventral; metatarsus 1 dorsal, 4 prolateral, 3 retrolateral, 9 ventral and two groups of ventral spiny plexus near distad, among them, prolateral group of 3, retrolateral group of 4; tarsus 8 prolateral, 9 retrolateral.

Measurement of palp and legs: palp length: 8.48 (2.90, 1.13, 3.11, 1.34); leg I: 15.90 (4.71, 1.82, 3.43, 3.65, 2.29), leg II: 15.18 (4.26, 1.55, 3.33, 3.78, 2.26), leg III: 14.97 (4.04, 1.56, 3.01, 4.00, 2.36), leg IV: 17.94 (4.78, 1.56, 3.77, 5.19, 2.64). Leg formula: 4123.

STC with curved row of long teeth; ITC curved, with few fine teeth ( Fig. 6B View FIGURE 6 ).

Abdomen light black, hairy. Spinnerets: PMS white; PLS slenderness, basal, distal end white ( Fig. 6I View FIGURE 6 ). PMS 1.37 long, 0.32 wide; PLS 6.04 long (2.15, 1.61, 2.28); PMS–PMS 1.02.

Female: Total length 15.28 (not including chelicerae and spinnerets), cephalothorax 5.78 long, 4.85 wide; abdomen 9.20 long, 5.71 wide. Eye sizes and inter-distances: AME 0.29, ALE 0.41, PME 0.28, PLE 0.36; ALE–AME 0.10, AME–AME 0.19, ALE–PLE 0.11, PLE–PME 0.07, PME–PME 0.62. Eye group 0.79 long, 1.48 wide. Chelicerae black, with 14 stout promarginal teeth, basomesally with 16 smaller teeth, plus 11 tiny teeth. Labium, maxillae, brown; ventral with dark brown bristles and ventrally with black bristles and patch of cuspules on anterior 1/2 ( Fig. 7C View FIGURE 7 ); maxillae area length 2.07, and cuspule area length 1.31. Sternum cordate, with three pairs of sigilla ( Fig. 7E View FIGURE 7 ).

Spines. Leg I: femur 1 prolateral near distad; patella 1 prolateral near distad; tibia 3 ventral distally; metatarsus 6 ventral, and two groups of ventral spiny plexus near distad, among them, each group of 2, respectively; tarsus 5 prolateral, 2 retrolateral. Leg II: femur with 1 prolateral near distad; patella 2 prolateral; tibia 1 prolateral, 3 distoventral and 5 long ventral; metatarsus 1 prolateral, 6 ventral, two groups of ventral spiny plexus near distad, prolateral group of 2, retrolateral group 3; tarsus 5 prolateral, 3 retrolateral. Leg III: femur 1 prolateral and 1 retrolateral near distad; patella 4 prolateral, 2 retrolateral; tibia 2 prolateral, 2 retrolateral, 1 dorsal, 2 ventral and 5 long; metatarsus 7 ventral, 5 prolateral, and two groups of ventral spiny plexus near distad, among them, prolateral group of 2, retrolateral group of 3 spines (one especially strong); tarsus 6 prolateral, 4 retrolateral. Leg IV: femur 1 prolateral spine; patella 3 prolateral, 4 retrolateral; tibia 1 prolateral, 2 retrolateral, 2 ventral distally; metatarsus 6 prolateral, 4 retrolaterals, 6 ventral, and two groups of ventral spiny plexus near distad, among them, prolateral group of 3, retrolateral group of 4; tarsus 6 prolateral, 5 retrolateral.

Measurement of palp and legs: palp length: 9.34 (3.34, 1.45, 1.97, 2.58); leg I: 14.01 (4.19, 2.01, 3.00, 2.81, 2.00), leg II: 13.63 (4.04, 1.77, 2.99, 2.87, 1.96), leg III: 14.03 (4.16, 1.90, 2.63, 3.59, 2.02), leg IV: 17.39 (4.63, 2.22, 3.47, 4.65, 2.42).

Leg formula: 4312. STC with curved row of long teeth (teeth on ITC was broken, but three basal teeth can be seen) ( Fig. 7B View FIGURE 7 ).

Abdomen gray, hairy. Spinnerets: PMS present white; PLS slenderness, basal, distal end present white ( Fig. 7D View FIGURE 7 ). PMS 1.39 long, 0.28 wide; PLS 6.65 long (2.12, 2.15, 2.38); PMS–PMS 1.55.

Variation (male): Male (holotype and three male paratypes; N=4): body length: with chelicerae 15.67–19.73 (18.17±2.16); without chelicerae 13.12–16.65 (15.27±1.89). Carapace 5.26–5.91 (5.61±0.33) length, 4.86–5.23 (4.99±0.21) width. Maxillary cuspules 290–306. Labial cuspules 101–116. Variation of palp and leg measurements are shown in suppl. Table S4. No significant difference is evident in their genitalia.

Distribution: China: Yunnan (Xi-chou, Ma-guan, Ping-bian).