Wuliphantes trigyrus Irfan & Wang & Zhang 2023, gen. et sp. nov.
Creators: name: Irfan, Muhammad
name: Wang, Lu-Yu
name: Zhang, Zhi-Sheng
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Wuliphantes
Wuliphantes trigyrus

description: Wuliphantes trigyrus gen. et sp. nov. (三圈五里蛛)
urn:lsid:zoobank.org:act: E42DFF20-0133-4382-A787-90B1DE1CAF06
Figs 61–63
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, 58–59, 61–62), but can be distinguished from both of the species by the embolus with about three coils in the new species (Fig. 61A), whereas with four coils in W. guanshan (Fig. 55A) and with two coils in W. tongluensis (Fig. 58A); base of protegulum with about eight small teeth in new species (Fig. 58B), whereas teeth absent in both W. guanshan (Fig. 55B) and W. tongluensis (Fig. 58B). In epigyne, copulatory ducts with about seven coils before entering the spermathecae in the new species (Fig. 62B–C), whereas with eight coils in W. guanshan (Fig. 59B–C) and with five coils in W. tongluensis (Fig. 59B–C). All of the three species have conspicuous differences in the shape of spermathecae (Figs 56C, 59C, 62C).
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).
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.
Paratypes CHINA • 1 ♀; same collection data as for holotype; SWUC-T-LIN-25-02 • 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 • 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.
Description
Male (holotype, Figs 62, 63A)
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). 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); embolus with three coils, originating at 12 o’clock on prolateral side of palp.
Female (paratype, SWUC-T-LIN-25-02, Figs 62, 63B)
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). 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.
description: Published as part of Irfan, Muhammad, Wang, Lu-Yu & Zhang, Zhi-Sheng, 2023, Survey of Linyphiidae spiders (Arachnida: Araneae) from Wulipo National Nature Reserve, Chongqing, China, pp. 1-85 in European Journal of Taxonomy 871 on pages 70-80, DOI: 10.5852/ejt.2023.871.2129, http://zenodo.org/record/8007049