Meta wanglang Wang & Irfan & Chen & Zhang 2022, sp. nov.
Creators: name: Wang, Lu-Yu
name: Irfan, Muhammad
name: Chen, Hui-Ming
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Tetragnathidae
Meta
Meta wanglang

description: 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).
description: Published as part of 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, pp. 117-147 in European Journal of Taxonomy 834 on pages 138-142, DOI: 10.5852/ejt.2022.834.1905, http://zenodo.org/record/7017596