Meta gyirong, 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 : 128-130

Meta gyirong sp. nov.

urn:lsid:zoobank.org:act:691650B9-4877-4EA6-803C-EADB85A03913

Figs 1E , 8–9 , 22

Differential diagnosis

M. gyirong sp. nov. can be distinguished from all other congeners by the metaine embolic apophysis tongue-shaped with blunt end; cymbial ectobasal process L-shaped with a ramous about two times longer than tibia, gradually narrow towards distal end with pointed tip and a sharp tooth ( Figs 8A–C , 9A–D ).

Etymology

The epithet refers to the type locality.

Type material

Holotype CHINA • ♂; Tibet, Gyirong County, Gyirong Town, Riwubanba ; 28°28′33.55″ N, 85°13′35.65″ E; alt. 3089 m; 30 Jul. 2020; L.Y. Wang, T. Yuan, P. Liu and Y.M. Hou leg.; SWUC-T-TEg-04-01 .

Paratypes CHINA • 2 ♂♂; same collection data as for holotype; SWUC-T-TEg-04-02–03 • 3 ♂♂; Gyirong County, Gyirong Town , Riwubanba; 28°28′33.55″ N, 85°13′35.65″ E; alt. 3089 m; 15 Jul. 2018; L.Y. Wang, Z.S. Wu and Y.N. Mu leg.; SWUC-T-TEg-04-04–06 • 1 ♂; Gyirong County, Gyirong Town , Longmu; 28°28.836′ N, 85°13.489′ E; alt. 3074 m; 17 Jul. 2018; L.Y. Wang, Z.S. Wu and Y.N. Mu leg.; SWUC- T-TEg-04-07 .

Description

Male (holotype, Fig. 1E )

MEASUREMENTS. Total length 7.37. Prosoma 3.44 long, 2.67 wide; opisthosoma 4.39 long, 2.62 wide. Eye sizes and interdistances: AME 0.20, ALE 0.21, PME 0.20, PLE 0.20; AME–AME 0.14, AME– ALE 0.22, PME–PME 0.14, PME–PLE 0.27, ALE–PLE 0.03. MOA 0.51 long, front width 0.53, back width 0.55. Clypeus height 0.21.

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

LEG MEASUREMENTS. I = 27.24 (7.28, 9.50, 8.14, 2.32); II = 19.08 (5.59, 6.83, 5.04, 1.62); III = 10.04 (3.25, 3.20, 2.53, 1.06); IV = 13.31 (4.30, 4.29, 3.54, 1.18). Leg formula: 1243.

OPISTHOSOMA. Oval, with two pairs of sigillae. Both dorsum and venter yellowish brown, with black markings.

PALP ( Figs 8A–C , 9A–D ). Cymbial ectobasal process simple, two times longer than tibia narrow towards distal end, with sharp tooth. Paracymbium finger-like, widest medially, with sparse long hairs. Metaine embolic apophysis sclerotized, longer than wide, slightly curved, extending forward.

EMBOLUS. Long, arc-shaped with fine tip. Conductor strong, arising meso-retrolaterally from bulb and extending clockwise, sword-shaped in ventral view.

Female

Unknown.

Distribution

China, Tibet (Gyirong) ( 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. 8. Meta gyirong sp. nov., ♂, holotype (SWUC-T-TEg-04-01). A. Left palp, prolateral view.B. Same, ventral view. C. Same, retrolateral view.

Fig. 9. Meta gyirong sp. nov., ♂, holotype (SWUC-T-TEg-04-01). A. Left palp, prolateral view.B. Same, ventral view. C. Same, retrolateral view. D. Same, dorsal view.

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