Euochin yuan, Wang & Yu & Zhang, 2024

Wang, Weihang, Yu, Ying & Zhang, Junxia, 2024, On a new genus and twelve new species of jumping spiders from southwestern China (Araneae, Salticidae, Salticinae, Euophryini), Zootaxa 5538 (3), pp. 201-232 : 222

Euochin yuan sp. nov. (¤尧奇e)

Figs 135–146

Type material. Holotype: ♂ ( MHBU-ARA-00025260 ), CHINA: Yunnan Province, Tengchong City, Xinhua Village , 24.7732°N, 98.4567°E, 1896 m elev., 13 April 2023, leg. W. Wang.

Etymology. The new species is named after the word “gibbon” in Chinese, namely “yuan ” (DZ), referring to the gibbon-like appearance of living adult male. Noun in apposition.

Diagnosis. Male can be distinguished from all other congeners by the outstandingly large body size and the long setae covering legs I, II, and palps.

Description.Male. Habitus shown in Figs 142,144 .Carapace length2.558; abdomen length2.697.Measurements of eyes: AME 0.513, ALE 0.276, PME 0.102, PLE 0.259. Measurements of legs: I 3.555 (1.133, 0.422, 0.721, 0.789, 0.490), II 3.047 (1.032, 0.385, 0.710, 0.463, 0.457), III 3.174 (1.077, 0.440, 0.753, 0.493, 0.411), IV 3.418 (1.189, 0.412, 0.700, 0.691, 0.426); leg formula: 1432. Color in ethanol: carapace dark brown, with dense yellow and white setae.Abdomen dark, with yellowish-white bands. Chelicera ( Fig. 143 ) with two promarginal and one retromarginal teeth. Palp ( Figs 139–141, 145–146 ): tegulum with a large blunt LTS, embolic disc small, nearly horizontal in ventral view, embolus short; RTA with sharpened tip.

Female. Unknown.

Natural history. The species is the largest and most colorful species of the genus, and the only member known to regularly inhabit both leaf litter and shrubs.

Distribution. China (Yunnan).

Figures

FIGURES 135–138. Holotype male of Euochin yuan sp. nov..

FIGURES 139–146. Holotype male of Euochin yuan sp. nov.. 139–141, 145. Left male palp of holotype, in prolateral (139), ventral (140, 145) and retrolateral (141) views; 142. Carapace, in frontal view; 143. Left chelicera; 144. Habitus, in dorsal view; 146. Detail of RTA.