Icius zhengi, Yang & Zhang, 2024

Yang, Zhiyong & Zhang, Junxia, 2024, On eight species of Chrysillini from Xizang, China (Araneae: Salticidae: Salticinae), Zootaxa 5447 (2), pp. 151-187 : 170-173

publication ID	https://doi.org/ 10.11646/zootaxa.5447.2.1
publication LSID	lsid:zoobank.org:pub:478235E5-DAA2-4524-A247-7EBA4EE56CCB
DOI	https://doi.org/10.5281/zenodo.11119769
persistent identifier	https://treatment.plazi.org/id/D55287B7-E46D-D86B-FF7F-F98CFDD1F84B
treatment provided by	Plazi
scientific name	Icius zhengi
status	sp. nov.

Treatment

Icius zhengi sp. nov. (Kĸ伊ø)

Figs 116–138 View FIGURES 116–120 View FIGURES 121–128 View FIGURES 129–133 View FIGURES 134–138

Type material. Holotype: ♂ (MHBU-ARA-00026731), CHINA: Xizang Autonomous Region, Lhasa City (Ë ḛṪ), Doilungdeqen District (堆ĪDzẑ区), Naiqung Street (乃Dzĕ), 29.6532°N, 90.8511°E, 3913 m a.s.l., 1 August 2023, leg. Y. Hou, Z Yang, Y. Ni & Y. Badan. GoogleMaps Paratypes: 1♂ 1♀ (MHBU-ARA-00026629, MHBU-ARA-00026732), same data as the holotype GoogleMaps .

Etymology. The specific epithet is in honor of Prof. Guangmei Zheng (K光ṯ), who was a renowned ornithologist and conducted pioneering research on avian ecology and behavior.

Diagnosis. The new species is similar to Icius kulakangri sp. nov. in the markings on the body, especially in males, but can be distinguished by the shorter and straight embolus, the shorter distance between the copulatory openings, which are in close proximity to the fertilization ducts, and the prominent accessory glands on the copulatory duct ( Figs 130, 132, 133 View FIGURES 129–133 , 135, 137, 138 View FIGURES 134–138 ; vs. the embolus longer and bent, the distance between copulatory openings longer, copulatory openings far away from the fertilization ducts, and accessory glands indistinct in I. kulakangri sp. nov., Figs 110–115 View FIGURES 107–112 View FIGURES 113–115 ). It differs from I. han sp. nov. in the almost triangular lamellar tegular process (LP), the shorter RTA, the smaller copulatory openings that are closer to each other, and the more prominent accessory glands ( Figs 130, 132, 133 View FIGURES 129–133 , 135, 137, 138 View FIGURES 134–138 ; vs. the LP almost rectangular, RTA longer, copulatory openings larger and far apart, and accessory glands invisible in I. han sp. nov., Figs 60, 62–67 View FIGURES 59–63 View FIGURES 64–67 ).

Description. Male. Habitus as in Figs 116–118 View FIGURES 116–120 , 121, 122 View FIGURES 121–128 . Measurements of holotype: carapace 1.99 long, 1.37 wide, abdomen 1.81 long, 1.34 wide; eye measurements: AME 0.34, ALE 0.18, PME 0.05, PLE 0.15; leg measurements: Ⅰ 3.29 (1.07, 0.60, 0.73, 0.45, 0.44), II 2.69 (0.86, 0.46, 0.54, 0.40, 0.43), III 2.98 (0.92, 0.47, 0.57, 0.48, 0.54), IV 3.45 (1.04, 0.39, 0.78, 0.66, 0.58); leg formula 4132. Carapace dark brown, eye field black, with white scales on edge and in middle, black and yellow scales elsewhere ( Fig. 121 View FIGURES 121–128 ). Chelicerae brown, with two promarginal and one retromarginal teeth ( Figs 125, 126 View FIGURES 121–128 ). Abdomen covered with white scales in anterior middle part and along lateral sides, brown and black elsewhere ( Figs 121, 123 View FIGURES 121–128 ). Legs brown, leg I darker than others ( Figs 116–118 View FIGURES 116–120 , 121 View FIGURES 121–128 ).

Palp (129–131, 134–136): embolus thin and short; tegulum rough; tegular bump medio-retrolaterally located; RTA dagger-like, palp with white scales on dorsal side ( Figs 116–118 View FIGURES 116–120 ).

Female. Habitus as in Figs 119, 120 View FIGURES 116–120 , 122, 124 View FIGURES 121–128 . Measurements of one paratype (MHBU-ARA-00026732): carapace 2.10 long, 1.48 wide, abdomen 2.83 long, 1.59 wide; eye measurements:AME 0.35, ALE 0.23, PME 0.06, PLE 0.16; leg measurements: Ⅰ 2.82 (0.86, 0.45, 0.65, 0.41, 0.45), II 2.63 (0.80, 0.39, 0.57, 0.36, 0.51), III 3.05 (0.92, 0.46, 0.53, 0.47, 0.67), IV 3.82 (1.16, 0.47, 0.87, 0.66, 0.66); leg formula 4312. Carapace brown, with white and yellow scales ( Figs 119, 120 View FIGURES 116–120 , 122 View FIGURES 121–128 ). Abdomen dark brown, with yellowish-brown markings ( Figs 119, 120 View FIGURES 116–120 , 122 View FIGURES 121–128 ). Legs yellow ( Figs 119, 120 View FIGURES 116–120 , 122 View FIGURES 121–128 ).

Epigynum ( Figs 132, 133 View FIGURES 129–133 , 137, 138 View FIGURES 134–138 ): copulatory openings separated, located anterior to spermathecae, with two pockets close to genitalic groove. Vulva ( Figs 133 View FIGURES 129–133 , 138 View FIGURES 134–138 ): copulatory ducts short, with prominent accessory glands, spermathecae small and oval.

Natural history. Lives in the nest aggregations beneath a pile of boulders.

Distribution. China (Xizang) ( Fig. 1 View FIGURE 1 ).