Chrysilla yarlungzangbo, 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 : 152-155

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.11119755
persistent identifier	https://treatment.plazi.org/id/D55287B7-E47F-D879-FF7F-F8FBFDD1F823
treatment provided by	Plazi
scientific name	Chrysilla yarlungzangbo
status	sp. nov.

Treatment

Chrysilla yarlungzangbo sp. nov. (ǎm丽ḋø)

Figs 1–3 View FIGURE 1 View FIGURES 2–7 , 14–27 View FIGURES 14–18 View FIGURES 19–21 View FIGURES 22–27

Type material. Holotype: ♂ (MHBU-ARA-00026579), CHINA: Xizang Autonomous Region, Nyingchi City (ö ĭṪ), Medog County (墨º县), Mirage Scenic Area (ḂṪãēḁ区), 29.3439°N, 95.3443°E, 1264 m a.s.l., 14 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan. GoogleMaps

Etymology. The specific epithet refers to the Yarlung Zangbo Jiang (ǎẽäħȗ); noun in apposition. The type locality is situated in Medog County within the Yarlung Zangbo Grand Canyon. Medog is referred as the "Secret Land of Lotus Flowers" in the Zang language, and is renowned for its rich biodiversity.

Diagnosis. The new species resembles Chrysilla acerosa Wang & Zhang, 2012 in the elongated and slender embolus (see Wang & Zhang 2012: 66, figs 4, 5, 13, 14; Figs 22–27 View FIGURES 22–27 ), but differs by the presence of a lamellar tegular process (LP) at the base of the embolus of the male palp ( Figs 23, 26 View FIGURES 22–27 ; vs. LP absent in C. acerosa ), and the long RTA ( Figs 23, 24, 26, 27 View FIGURES 22–27 ; vs. RTA in C. acerosa wide with a sharp ventral tip).

Description. Male. Habitus as in Figs 14–19 View FIGURES 14–18 View FIGURES 19–21 . Measurements of holotype: carapace 2.23 long, 1.71 wide, abdomen 4.15 long, 1.06 wide; eye measurements: AME 0.52, ALE 0.29, PME 0.13, PLE 0.27; leg measurements: Ⅰ 5.79 (1.74, 0.69, 1.59, 1.05, 0.72), II 4.51 (1.42, 0.65, 1.08, 0.80, 0.56), III 5.10 (1.56, 0.54, 1.25, 1.15, 0.60), IV 6.07 (1.77, 0.58, 1.61, 1.47, 0.64); leg formula 4132. Carapace, abdomen and leg I covered with various iridescent scales, virtually transparent scales on other appendages ( Figs 14–19 View FIGURES 14–18 View FIGURES 19–21 ). Chelicerae brown, with two promarginal and one retromarginal teeth ( Fig. 21 View FIGURES 19–21 ). Abdomen slim ( Figs 14–19 View FIGURES 14–18 View FIGURES 19–21 ).

Palp ( Figs 22–27 View FIGURES 22–27 ): embolus elongated, base with lamellar tegular process ( Figs 23, 26 View FIGURES 22–27 ); cymbium longer than wide ( Figs 22–27 View FIGURES 22–27 ); RTA dagger-like in retrolateral view ( Figs 24, 27 View FIGURES 22–27 ).

Female. Unknown.

Natural history. Foliage-dweller ( Figs 2, 3 View FIGURES 2–7 ).

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