Meta wanglang, Wang & Irfan & Chen & Zhang, 2022

Wang, Lu-Yu, Irfan, Muhammad, Chen, Hui-Ming & Zhang, Zhi-Sheng, 2022, Seven new species of Meta C. L. Koch, 1836 (Araneae, Tetragnathidae) from Southwest China, European Journal of Taxonomy 834, pp. 117-147 : 138-142

Meta wanglang sp. nov.

urn:lsid:zoobank.org:act:4AFF03AB-7F37-4B67-84AE-7BC24DAA7845

Figs 1J–K , 16–18 , 22

Differential diagnosis

This species can be differentiated from all other congeners by the cymbial ectobasal process robust with three conspicuous projections, the outer projection horn-shaped with pointed end; median projection broad with many denticles and the inner projection relatively sclerotized, thumb-shaped with blunt end in male palp ( Figs 16B–C , 17B–D ). The female can be differentiated from all other congeners by the spermathecae with buds-like outgrowths ( Figs 16E , 18B ); posterior margin of epigynal plate relatively membranous ( Fig. 18B ). Both male and female abdomen anteriorly with a pair of humps ( Fig. 1J–K ).

Etymology

The epithet refers to the type locality.

Type material

Holotype CHINA • ♂; Sichuan Province, Pingwu County, Baima Township, Wanglang Nature Reserve , Muyangchang ; 32°58′04″ N, 104°06′18″ E; alt. 2503 m; 24 Sep. 2019; L.Y. Wang, P. Liu, T. Yuan, Z. Fan, Y. Zhang and M. Zhang leg.; SWUC-T-TEg-07-01 .

Paratypes CHINA • 1 ♂; same collection data as for holotype; SWUC-T-TEg-07-02 • 9 ♀♀; same collection data as for preceding; SWUC-T-TEg-07-03–11 • 1 ♀; Muyangchang ; 32°58′04″ N, 104°06′18″ E; alt. 503 m; 13 Oct. 2018; Z.S. Zhang, L.Y. Wang, Z. Fan, P. Liu and T. Yuan leg.; SWUC-T-TEg-07-12 • 1 ♂; Muyangchang ; 32°58′04″ N, 104°06′18″ E; alt. 2503 m; 23 Aug. 2016; L.Y. Wang and Z.S. Wu leg.; SWUC-T-TEg-07-13 • 2 ♀♀; same collection data as for preceding; SWUC-T-TEg-07-14–15 .

Description

Male (holotype, Fig. 1J )

MEASUREMENTS. Total length 5.84. Prosoma 2.81 long, 2.14 wide, opisthosoma 3.28 long, 2.53 wide. Eye sizes and interdistances: AME 0.16, ALE 0.17, PME 0.17, PLE 0.19; AME–AME 0.13, AME– ALE 0.19, PME–PME 0.11, PME–PLE 0.24, ALE–PLE 0.03. MOA 0.52 long, front width 0.44, back width 0.48. Clypeus height 0.17.

CHELICERAE. Strong, with 3 promarginal and 4 retromarginal teeth.

LEG MEASUREMENTS. I = 10.68 (3.69, 4.76, 3.44, 1.45); II = 8.83 (3.09, 3.84, 2.56, 1.23); III = 4.93 (1.90, 1.96, 1.37, 0.84); IV = 6.40 (2.59, 2.68, 1.97, 0.88). Leg formula: 1243.

OPISTHOSOMA. Oval, with two pairs of sigillae. Anteriorly with pair of humps, dorsum and venter white, with black markings.

PALP ( Figs 16A–C , 17A–D ). Cymbial ectobasal process robust, with three conspicuous projections, outer projection horn-shaped with pointed end; median projection broad with many teeth and inner projection relatively sclerotized, thumb-shaped with blunt end. Paracymbium finger-like, relatively broad tip, with sparse long hairs. Metaine embolic apophysis grooved, with blunt end, extending forward.

EMBOLUS. Long, arc-shaped with fine tip. Conductor strong, arising meso-retrolaterally from bulb and extending clockwise, longer than wide.

Female (paratype SWUC-T-TEg-07-03, Fig. 1K )

MEASUREMENTS. Total length 7.37. Prosoma 3.26 long, 2.60 wide; opisthosoma 4.49 long, 3.73 wide. Eye sizes and interdistances: AME 0.18, ALE 0.23, PME 0.20, PLE 0.23; AME–AME 0.16, AME– ALE 0.25, PME–PME 0.14, PME–PLE 0.30, ALE–PLE 0.04. MOA 0.56 long, front width 0.55, back width 0.61. Clypeus height 0.22.

LEG MEASUREMENTS. I = 14.84 (4.08, 5.23, 3.80, 1.73); II = 12.82 (3.62, 4.60, 3.15, 1.45); III = 7.52 (2.49, 2.30, 1.68, 1.05); IV = 10.00 (3.17, 3.27, 2.49, 1.07). Other morphological characteristics same as in male, except opisthosoma lighter in color with few black markings.

EPIGYNE ( Figs 16D–E , 18A–B ). Posterior margin of epigynal plate relatively membranous.

VULVA. Spermathecae with buds-like outgrowths. Fertilization ducts thick, C-shaped.

Distribution

China, Sichuan (Pingwu County) ( Fig. 22 ).

Figures

Fig. 1. A. Meta bowo sp. nov., ♂, holotype (SWUC-T-TEg-02-01), habitus, dorsal view. B. Meta bowo sp. nov., ♀, paratype (SWUC-T-TEg-02-06), habitus, dorsal view. C. Meta cona sp. nov., ♂, holotype (SWUC-T-TEg-03-01), habitus, dorsal view. D. Meta cona sp. nov., ♀, paratype (SWUC-T-TEg-03-02), habitus, dorsal view. E. Meta gyirong sp. nov., ♂, holotype (SWUC-T-TEg-04-01), habitus, dorsal view. F. Meta hongyuan sp. nov., ♂, holotype (SWUC-T-TEg-05-01), habitus, dorsal view. G. Meta hongyuan sp. nov., ♀, paratype (SWUC-T-TEg-05-03), habitus, dorsal view. H. Meta tibet sp. nov., ♂, holotype (SWUC-T-TEg-06-01), habitus, dorsal view. I. Meta tibet sp. nov., ♀, paratype (SWUC-T-TEg-06-05), habitus, dorsal view. J. Meta wanglang sp. nov., ♂, holotype (SWUC-T-TEg-07-01), habitus, dorsal view. K. Meta wanglang sp. nov., ♀, paratype (SWUC-T-TEg-07-03), habitus, dorsal view. L. Meta weining sp. nov., ♂, holotype (SWUC-T-TEg-08-01), habitus, dorsal view. M. Meta weining sp. nov., ♀, paratype (SWUC-T-TEg-08-03), habitus, dorsal view.

Fig. 16. Meta wanglang sp. nov.A–C. ♂, holotype (SWUC-T-TEg-07-01). D–E. ♀, paratype (SWUC-T- TEg-07-03). A. Left palp, prolateral view.B. Same, ventral view.C. Same, retrolateral view.D. Epigyne, ventral view. E. Vulva, dorsal view.

Fig. 17. Meta wanglang sp. nov., ♂, holotype (SWUC-T-TEg-07-01). A. Left palp, prolateral view. B. Same, ventral view. C. Same, retrolateral view. D. Same, dorsal view.

Fig. 18. Meta wanglang sp. nov., ♀, paratype (SWUC-T-TEg-07-03). A. Epigyne, ventral view. B. Vulva, dorsal view.

Fig. 22. Distribution records of seven new species of the genus Meta C.L. Koch, 1836 in Southwest China.