Icius han, 1876

Yang, Zhiyong & Zhang, Junxia, 2024, On eight species of Chrysillini from Xizang, China (Araneae: Salticidae: Salticinae), Zootaxa 5447 (2), pp. 151-187 : 161-164

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.11122808
persistent identifier	https://treatment.plazi.org/id/D55287B7-E474-D870-FF7F-FA5FFDD1FE03
treatment provided by	Plazi
scientific name	Icius han
status

Treatment

Icius han View in CoL View at ENA sp. nov. (Ṟ伊e)

Figs 54–67 View FIGURES 54–58 View FIGURES 59–63 View FIGURES 64–67

Type material. Holotype: ♂ (MHBU-ARA-00025147), CHINA: Xizang Autonomous Region, Qamdo City (ª DṪ), Markam County (Ēå县), 29.7074°N, 98.4924°E, 4068 m a.s.l., 26 May 2022, leg. B. Liu & L. Wang. GoogleMaps Paratypes: 1♂ 1♀ (MHBU-ARA-00026977, MHBU-ARA-00026978), same data as the holotype GoogleMaps .

Etymology. The specific epithet "han" is from the Chinese pinyin for "cold", reflecting the high-altitude and low-temperature habitat where the new species was discovered; noun in apposition.

Diagnosis. The new species resembles Icius zang and I. kulakangri sp. nov. in the genitalic structures (see Wang et al. 2024: 156, 157, figs 9A–C, 10A–B; Figs 107–115 View FIGURES 107–112 View FIGURES 113–115 ). It can be distinguished from I. zang by the right-angled retrolateral constriction between the posterior lobe of tegulum (PL) and tegulum ( Figs 60 View FIGURES 59–63 , 64 View FIGURES 64–67 ; vs. the retrolateral constriction between PL and tegulum is not right-angled in I. zang ); the longer distance between copulatory openings and longer copulatory ducts ( Figs 63 View FIGURES 59–63 , 67 View FIGURES 64–67 ; vs. the distance between copulatory openings is shorter and the copulatory ducts are shorter in I. zang ). It differs from I. kulakangri sp. nov. in the straight embolus ( Figs 60 View FIGURES 59–63 , 64 View FIGURES 64–67 ; vs. the embolus is slightly bent in I. kulakangri sp. nov., Figs 110 View FIGURES 107–112 , 113 View FIGURES 113–115 ), the right-angled retrolateral constriction between PL and tegulum ( Figs 60 View FIGURES 59–63 , 64 View FIGURES 64–67 ; vs. the retrolateral constriction between PL and tegulum is not right-angled in I. kulakangri sp. nov., Figs 110 View FIGURES 107–112 , 113 View FIGURES 113–115 ), the wider lamellar tegular process (LP) ( Figs 60 View FIGURES 59–63 , 64 View FIGURES 64–67 ; vs. LP is narrower in I. kulakangri sp. nov., Figs 110 View FIGURES 107–112 , 113 View FIGURES 113–115 ); the epigynum with larger copulatory openings ( Figs 62 View FIGURES 59–63 , 66 View FIGURES 64–67 ; vs. the copulatory openings are smaller in I. kulakangri sp. nov., Figs 111 View FIGURES 107–112 , 114 View FIGURES 113–115 ).

Description. Male. Habitus as in Fig. 54 View FIGURES 54–58 . Measurements of holotype: carapace 1.91 long, 1.34 wide, abdomen 1.92 long, 1.32 wide; eye measurements: AME 0.32, ALE 0.20, PME 0.05, PLE 0.14; leg measurements: Ⅰ 5.60 (1.63, 0.99, 1.48, 0.92, 0.58), II 3.42 (1.01, 0.57, 0.72, 0.62, 0.50), III 3.39 (1.01, 0.49, 0.67, 0.65, 0.57), IV 4.21 (1.29, 0.57, 0.93, 0.83, 0.59); leg formula 1423. Carapace brown with white lateral margins and a white stripe in middle, eye field black, with sparse yellow scales ( Fig. 54 View FIGURES 54–58 ). Chelicerae brown, with two promarginal and one retromarginal teeth ( Fig. 56 View FIGURES 54–58 ). Abdomen dark brown with two white stripes ( Fig. 54 View FIGURES 54–58 ). Femur to tarsus of legs dark to brown ( Fig. 54 View FIGURES 54–58 ).

Palp (59–61, 64, 65): embolus medium length and thin; tegulum rough, with a constriction near the posterior lobe of tegulum; tegular bump not prominent in ventral view; RTA dagger-like, palp with white scales on dorsal side ( Fig. 58 View FIGURES 54–58 ).

Female. Habitus as in Fig. 55 View FIGURES 54–58 . Measurements of paratype (MHBU-ARA-00026978): carapace 1.96 long, 1.28 wide, abdomen 2.21 long, 1.31 wide; eye measurements: AME 0.36, ALE 0.19, PME 0.05, PLE 0.15; leg measurements: Ⅰ 2.94 (0.95, 0.59, 0.58, 0.42, 0.40), II 2.74 (0.84, 0.48, 0.57, 0.41, 0.44), III 3.04 (0.98, 0.47, 0.55, 0.51, 0.53), IV 3.74 (1.13, 0.53, 0.78, 0.67, 0.63); leg formula 4312. Carapace brown, with yellow and white scales ( Fig. 55 View FIGURES 54–58 ). Abdomen dark brown with a middle foliage-like yellowish marking ( Fig. 55 View FIGURES 54–58 ). Legs brown ( Fig. 55 View FIGURES 54–58 ).

Epigynum ( Figs 62, 63 View FIGURES 59–63 , 66, 67 View FIGURES 64–67 ): copulatory openings apart from each other, located anterior to spermathecae, with two pockets close to genital groove. Vulva ( Figs 63 View FIGURES 59–63 , 67 View FIGURES 64–67 ): copulatory ducts with two bulges close to spermathecae, spermathecae small and oval.

Natural history. Rock dwellers.

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