Icius kui, 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 : 164-166

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.11119763
persistent identifier	https://treatment.plazi.org/id/D55287B7-E473-D872-FF7F-F999FDD1FDCB
treatment provided by	Plazi
scientific name	Icius kui
status	sp. nov.

Treatment

Icius kui sp. nov. (ẅ伊ø)

Figs 6 View FIGURES 2–7 , 8, 11–13 View FIGURES 8–13 , 68–91 View FIGURES 68–71 View FIGURES 72–76 View FIGURES 77–83 View FIGURES 84–88 View FIGURES 89–91

Type material. Holotype: ♂ (MHBU-ARA-00026611), CHINA: Xizang Autonomous Region, Nyingchi City (ö ĭṪ), Gongbogyamda County (工ħȗż县), Jinda Town (aeżā), 30.0326°N, 92.9455°E, 3642 m a.s.l., 6 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan. GoogleMaps Paratypes: 2♀ (MHBU-ARA-00026735), same data as the holotype GoogleMaps ; 2♂ 3♀ (MHBU-ARA-00026608), CHINA: Xizang Autonomous Region, Nyingchi City (öĭṪ), Bome County ( DZŶ 县), Sumzom Town (ũâā), 29.7270°N, 96.1325°E, 3075 m a.s.l., 9 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan GoogleMaps ; 1♂ 1♀ (MHBU-ARA-00026572), CHINA: Xizang Autonomous Region, Xigaze City (Ƌẹ则Ṫ), Namling County (南Îö县), Nubma Town (奴Ḛ乡), 29.5172°N, 89.6237°E, 4016 m a.s.l., 30 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan. GoogleMaps

Etymology. The specific epithet "kui " is from the Chinese pinyin for the sunflower, as the male abdomen bears a marking that is strikingly similar to a sunflower seed; noun in apposition.

Diagnosis. The new species can be separated from I. han sp. nov. and I. kulakangri sp. nov. by the narrower light-colored stripes on the male abdominal dorsum ( Fig. 77 View FIGURES 77–83 ; vs. the light-colored stripes much wider in the other two species, Figs 54 View FIGURES 54–58 , 97 View FIGURES 97–106 ), and the copulatory openings located posterior to the spermathecae ( Figs 87, 88 View FIGURES 84–88 , 90, 91 View FIGURES 89–91 ; vs. anterior to spermathecae in the other two species, Figs 62, 63 View FIGURES 59–63 , 66, 67 View FIGURES 64–67 , 111, 112 View FIGURES 107–112 , 114, 115 View FIGURES 113–115 ). The new species and I. kulakangri sp. nov. both have a slightly bent embolus, but the new species is different in the longer and wider embolus, the broader embolus base in prolateral view, the right-angled retrolateral constriction between the posterior lobe of the tegulum (PL) and tegulum, and the shorter copulatory ducts ( Figs 84, 85, 88 View FIGURES 84–88 , 89, 91 View FIGURES 89–91 ; vs. embolus shorter and narrower, base of embolus narrower in prolateral view, retrolateral constriction between PL and tegulum not right-angled, and copulatory ducts longer in I. kulakangri sp. nov., Figs 107, 110, 112 View FIGURES 107–112 , 113, 115 View FIGURES 113–115 ).

Description. Male. Habitus as in Figs 68, 69 View FIGURES 68–71 , 72, 73 View FIGURES 72–76 , 77, 80 View FIGURES 77–83 . Measurements of holotype: carapace 2.11 long, 1.46 wide, abdomen 2.51 long, 1.54 wide; eye measurements: AME 0.32, ALE 0.19, PME 0.05, PLE 0.16; leg measurements: Ⅰ 4.01 (1.17, 0.77, 1.03, 0.62, 0.42), II 2.60 (0.81, 0.41, 0.55, 0.44, 0.39), III 2.82 (0.86, 0.45, 0.65, 0.38, 0.48), IV 3.48 (1.10, 0.48, 0.70, 0.62, 0.58); leg formula 1432. Carapace brown, with white lateral margins and white stripe in middle, eye field black, with sparse yellow scales ( Figs 72, 73 View FIGURES 72–76 , 77, 80 View FIGURES 77–83 ). Chelicerae brown, with two promarginal and one retromarginal teeth ( Fig. 82 View FIGURES 77–83 ). Abdomen dark brown, with two narrow white stripes ( Figs 72, 73 View FIGURES 72–76 , 77, 80 View FIGURES 77–83 ). Femur to tarsus of legs dark to brown ( Figs 72, 73 View FIGURES 72–76 , 81 View FIGURES 77–83 ).

Palp (84–86, 89): embolus medium length and slightly bent; tegulum rough; tegular bump medio-retrolaterally located, not prominent in ventral view; RTA dagger-like ( Figs 85–86 View FIGURES 84–88 ); palp with white scales on dorsal side ( Figs 72, 73 View FIGURES 72–76 ).

Female. Habitus as in Figs 70, 71 View FIGURES 68–71 , 74–76 View FIGURES 72–76 , 78, 79 View FIGURES 77–83 . Measurements of one paratype (one female in MHBU-ARA-00026735): carapace 1.79 long, 1.52 wide, abdomen 2.28 long, 1.46 wide; eye measurements: AME 0.32, ALE 0.17, PME 0.05, PLE 0.15; leg measurements: Ⅰ 2.91 (0.92, 0.48, 0.66, 0.41, 0.44), II 2.50 (0.76, 0.40, 0.56, 0.32, 0.46), III 2.63 (0.85, 0.32, 0.51, 0.40, 0.55), IV 3.50 (1.09, 0.44, 0.77, 0.61, 0.59); leg formula 4132. Carapace brown, with yellow and white scales ( Figs 74–76 View FIGURES 72–76 , 78, 79 View FIGURES 77–83 ). Abdomen grey-brown, with middle light-colored foliate marking ( Figs 74–76 View FIGURES 72–76 , 78, 79 View FIGURES 77–83 ). Legs yellow ( Figs 74–76 View FIGURES 72–76 ).

Epigynum ( Figs 87, 88 View FIGURES 84–88 , 90, 91 View FIGURES 89–91 ): copulatory openings separated, located posterior to spermathecae, with two pockets close to genitalic groove. Vulva ( Figs 88 View FIGURES 84–88 , 91 View FIGURES 89–91 ): copulatory ducts short, with accessory glands distinct and located close to spermathecae; spermathecae small and oval.

Natural history. Found underneath rocks ( Figs 6 View FIGURES 2–7 , 8, 12 View FIGURES 8–13 ), on tree trunks ( Fig. 13 View FIGURES 8–13 ), and among bushes; with nest aggregations ( Fig. 11 View FIGURES 8–13 ).

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