Wuliphantes trigyrus, Irfan & Wang & Zhang, 2023

Irfan, Muhammad, Wang, Lu-Yu & Zhang, Zhi-Sheng, 2023, Survey of Linyphiidae spiders (Arachnida: Araneae) from Wulipo National Nature Reserve, Chongqing, China, European Journal of Taxonomy 871, pp. 1-85 : 70-80

publication ID	https://doi.org/ 10.5852/ejt.2023.871.2129
publication LSID	lsid:zoobank.org:pub:0578106F-841E-4CD0-90F1-39CEDE96959C
DOI	https://doi.org/10.5281/zenodo.8007172
persistent identifier	https://treatment.plazi.org/id/E42DFF20-0133-4382-A787-90B1DE1CAF06
taxon LSID	lsid:zoobank.org:act:E42DFF20-0133-4382-A787-90B1DE1CAF06
treatment provided by	Felipe
scientific name	Wuliphantes trigyrus
status	gen. et sp. nov.

Treatment

Wuliphantes trigyrus gen. et sp. nov. (三圈五里蛛)

urn:lsid:zoobank.org:act:E42DFF20-0133-4382-A787-90B1DE1CAF06

Figs 61–63 View Fig View Fig View Fig

Differential diagnosis

The new species resembles Wuliphantes guanshan ( Irfan, Wang & Zhang, 2022) gen. et comb. nov. and W. tongluensis ( Chen & Song, 1988) gen. et comb. nov. in having similar genital organs of both male palp and epigyne ( Figs 55–56 View Fig View Fig , 58–59 View Fig View Fig , 61–62 View Fig View Fig ), but can be distinguished from both of the species by the embolus with about three coils in the new species ( Fig. 61A View Fig ), whereas with four coils in W. guanshan ( Fig. 55A View Fig ) and with two coils in W. tongluensis ( Fig. 58A View Fig ); base of protegulum with about eight small teeth in new species ( Fig. 58B View Fig ), whereas teeth absent in both W. guanshan ( Fig. 55B View Fig ) and W. tongluensis ( Fig. 58B View Fig ). In epigyne, copulatory ducts with about seven coils before entering the spermathecae in the new species ( Fig. 62B–C View Fig ), whereas with eight coils in W. guanshan ( Fig. 59B–C View Fig ) and with five coils in W. tongluensis ( Fig. 59B–C View Fig ). All of the three species have conspicuous differences in the shape of spermathecae ( Figs 56C View Fig , 59C View Fig , 62C View Fig ).

Etymology

The epithet is derived from the Latin prefix ‘ tri ’ and the noun ‘ gyrus ’ meaning ‘three and coils’ and referring to the embolus with three circles in male palp ( Fig. 61A View Fig ).

Type material

Holotype CHINA • ♂; Chongqing, Wushan County, Dangyang Town ; 31°24′8.26″ N, 109°58′45.57″ E; elev. 823 m; 1 Oct. 2020; L.Y. Wang, X.W. Zhou, T.Y. Ren, J.X. Zhao and L. Xiao leg.; SWUC-T-LIN-25-01 . GoogleMaps

Paratypes CHINA • 1 ♀; same collection data as for holotype; SWUC-T-LIN-25-02 GoogleMaps • 2 ♂♂; Wushan County, Dangyang Town, Wushanya ; 31°28′21.35″ N, 109°59′10.29″ E; elev. 1740 m; 2 Oct. 2020; L.Y. Wang, X.W. Zhou, T.Y. Ren, J.X. Zhao and L. Xiao leg.; SWUC-T-LIN-25-03–04 GoogleMaps • 1 ♀; Wushan County, Guanyang Town, Zhuxian Township , Putao Village ; 31°15′26.72″ N, 110°4′34.11″ E; elev. 1542 m; 6 Oct. 2020; L.Y. Wang, X.W. Zhou, T.Y. Ren, J.X. Zhao and L. Xiao leg.; SWUC-T-LIN-25-05 . GoogleMaps

Description

Male (holotype, Figs 62 View Fig , 63A View Fig )

MEASUREMENTS. Total 1.87 long; carapace 0.70 long, 0.73 wide; abdomen 1.17 long, 0.71 wide. Eye sizes and interdistances: AME 0.06, ALE 0.09, PME 0.08, PLE 0.09, AME–AME 0.02, PME–PME 0.04, AME–ALE 0.03, PME–PLE 0.04, ALE–ALE 0.33, PLE–PLE 0.36, ALE–PLE 0.01, AME–PME 0.07.

CEPHALOTHORAX. Carapace yellowish-brown; cephalic region slightly elevated; fovea, cervical and radial grooves distinct. Clypeus 0.15 high.

CHELICERAE. With three promarginal and five retromarginal teeth.

LEG MEASUREMENTS. Legs long, yellow. Length of legs: I 3.64 (0.96, 1.19, 0.78, 0.71), II 3.22 (0.91, 1.06,0.67,0.58), III 2.54 (0.77, 0.76,0.54,0.47), IV 3.55 (0.95, 1.17, 0.76, 0.76, 0.67). Leg formula IV-I-II-III. TmI 0.31 and TmIV absent. Tibial spine formula: 2-2-2-2.

ABDOMEN. Oval, gray, dorsally with transverse dark chevrons, ventral side gray.

PALP ( Fig. 61 View Fig ). Tibia conic, with two retrolateral and one dorsal trichobothrium, with many short and long spine-like hairs on all surfaces. Paracymbium sclerotized, simple, proximal end wide with thick spines, distal arm slightly curved extending towards cymbium with relatively broad tip covered by lateral margin of cymbium; tegulum longer than wide with a well-developed protegulum bulge on ectal side, eight small teeth present at the base of protegulum; embolic plate highly developed, with a short finger-shaped dorsal projection of embolic plate and a long ventral projection of embolic plate extending towards distal end with curved pointed tip; embolic plate dorsally with a long, thick spine (pointed with white arrow on the Fig. 5A View Fig ); embolus with three coils, originating at 12 o’clock on prolateral side of palp.

Female (paratype, SWUC-T-LIN-25-02, Figs 62 View Fig , 63B View Fig )

MEASUREMENTS. Total 1.65 long; carapace 0.85 long, 0.64 wide; abdomen 1.02 long, 0.65 wide. Eye sizes and interdistances: AME 0.04, ALE 0.07, PME 0.07, PLE 0.07, AME–AME 0.02, PME–PME 0.04, AME–ALE 0.04, PME–PLE 0.04, ALE–ALE 0.28, PLE–PLE 0.30, ALE–PLE contiguous, AME–PME 0.07.

CEPHALOTHORAX. Same as in male. Clypeus 0.12 high.

CHELICERAE. With three promarginal and five retromarginal teeth.

LEG MEASUREMENTS. Legs long, yellow. Length of legs: I 3.26 (0.87, 1.07, 0.74, 0.58), II 3.09 (0.84, 0.95, 0.74, 0.56), III 2.42 (0.71, 0.75, 0.51, 0.45), IV 3.17 (0.92, 0.99, 0.72, 0.54). Leg formula IV-I-II-III. TmI 0.23 and TmIV absent. Tibial spine formula: 2-2-2-2.

ABDOMEN. Same as in male.

EPIGYNE ( Fig. 62 View Fig ). Ventral plate unmodified; dorsal plate somewhat rectangular; copulatory opening inconspicuous, present posteriorly; copulatory ducts forming seven coils before joining the spermathecae; spermathecae compact, present at the apex of the dorsal plate; fertilization ducts extending mesally.

Distribution

Known from type locality.