Icius faker, 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 : 156-161

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.11122806
persistent identifier	https://treatment.plazi.org/id/D55287B7-E47B-D877-FF7F-FA30FDD1FA94
treatment provided by	Plazi
scientific name	Icius faker
status	sp. nov.

Treatment

Icius faker sp. nov. (飞壳伊e)

Figs 10 View FIGURES 8–13 , 28–53 View FIGURES 28–32 View FIGURES 33–40 View FIGURES 41–49 View FIGURES 50–53

Type material. Holotype: ♂ (MHBU-ARA-00026728), CHINA: Xizang Autonomous Region, Xigaze City (Ƌẹ则Ṫ), Rinbung County (仁ħ县), Partang Town (ñŝ乡), Unity Park (团ȅȓ园), 29.3140°N, 90.2683°E, 3835 m a.s.l., 31 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan. GoogleMaps Paratypes: 2♂ 3♀ (MHBU-ARA-00026583), same data as the holotype GoogleMaps .

Etymology. The specific epithet is a noun in apposition taken from "Faker", an alias used by Sang-hyeok Lee, who is a highly esteemed e-sports athlete in the game League of Legends. His striving spirit has inspired the first author during his study of jumping spiders.

Diagnosis. Icius faker sp. nov. closely resembles I. zang Wang, Mi & Li, 2024 and I. hamatus (C. L. Koch, 1846) in its genitalic structures (seeWang et al. 2024: 156, figs 9A–C, 10A–B; Andreeva et al. 1984: 353, figs 2–5). It can be distinguished from I. zang by the male palp with a wide and flat embolus ( Figs 41–47 View FIGURES 41–49 , 50, 51 View FIGURES 50–53 ; vs. embolus thin and tube-like in I. zang ); the inconspicuous lamellar tegular process (LP) of the male palp ( Figs 42, 43, 46 View FIGURES 41–49 , 50 View FIGURES 50–53 ; vs. LP obvious in I. zang ); the spermathecae are close to the genital groove ( Figs 49 View FIGURES 41–49 , 53 View FIGURES 50–53 ; vs. spermathecae far away from the genital groove in I. zang ). It differs from I. hamatus in the male palp with a wide and flat embolus ( Figs 41–47 View FIGURES 41–49 , 50, 51 View FIGURES 50–53 ; vs. embolus thin in I. hamatus ) and a single RTA ( Figs 46, 47 View FIGURES 41–49 , 50, 51 View FIGURES 50–53 ; vs. male palp with a dorsal tegular apophysis in addition to the RTA in I. hamatus ); the epigynum with larger copulatory openings and two obvious pockets along the genitalic groove ( Figs 48 View FIGURES 41–49 , 52 View FIGURES 50–53 ; vs. copulatory openings small and pocket absent in I. hamatus ).

Description. Male. Habitus as in Figs 29–31 View FIGURES 28–32 , 33 View FIGURES 33–40 . Measurements of holotype: carapace 1.94 long, 1.46 wide, abdomen 2.16 long, 1.56 wide; eye measurements: AME 0.38, ALE 0.22, PME 0.06, PLE 0.17; leg measurements: Ⅰ 3.62 (1.16, 0.54, 0.85, 0.51, 0.56), II 2.79 (0.90, 0.41, 0.61, 0.41, 0.46), III 3.11 (1.00, 0.48, 0.54, 0.60, 0.49), IV 3.26 (1.15, 0.48, 0.54, 0.60, 0.49); leg formula 1432. Carapace dark brown, with few scales ( Fig. 33 View FIGURES 33–40 ). Chelicerae black ( Figs 36, 39 View FIGURES 33–40 ), with two promarginal and one retromarginal teeth ( Fig. 39 View FIGURES 33–40 ). Leg I black, other legs lighter in color. Femur I with a row of stiff setae close to distal margin of prolateral surface, together with a line of long stiff seta, together with line of long stiff setae along lateral margin of eye area on carapace, probably functioning as stridulatory apparatus.

Palp ( Figs 41–47 View FIGURES 41–49 , 50, 51 View FIGURES 50–53 ): embolus flat and wide; tegulum rough; tegular bump medio-retrolaterally located; RTA dagger-like; dorsal side of palp with white scales ( Figs 29, 30 View FIGURES 28–32 , 36 View FIGURES 33–40 ).

Female. Habitus as in Figs 28, 32 View FIGURES 28–32 , 34 View FIGURES 33–40 . Measurements of paratype (one female in MHBU-ARA-00026583): carapace 2.04 long, 1.61 wide, abdomen 3.39 long, 2.38 wide; eye measurements:AME 0.35, ALE 0.23, PME 0.06, PLE 0.20; leg measurements: Ⅰ 3.50 (1.08, 0.57, 0.81, 0.54, 0.50), II 3.27 (1.03, 0.54, 0.70, 0.43, 0.57), III 3.49 (1.06, 0.51, 0.66, 0.62, 0.64), IV 4.30 (1.36, 0.53, 0.95, 0.89, 0.57); leg formula 4132. Carapace brown, with dense scales ( Figs 28 View FIGURES 28–32 , 34 View FIGURES 33–40 ). Stridulatory apparatus similar to males ( Figs 37–38 View FIGURES 33–40 ). Legs slightly yellow ( Figs 28, 32 View FIGURES 28–32 , 37 View FIGURES 33–40 ).

Epigynum ( Figs 48, 49 View FIGURES 41–49 , 52, 53 View FIGURES 50–53 ): copulatory openings obvious; two pockets present close to genitalic groove. Vulva ( Figs 49 View FIGURES 41–49 , 53 View FIGURES 50–53 ): copulatory ducts short with prominent accessory glands, spermathecae small, fertilization ducts at anterior region of spermathecae.

Natural history. Lives in the nest aggregations beneath rocks ( Fig. 10 View FIGURES 8–13 ).

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