Euochin yeyu, 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 : 218-221

Euochin yeyu sp. nov. (叶ª尧奇e)

Figs 115–134

Type material. Holotype: ♂ ( MHBU-ARA-00023389 ), CHINA: Yunnan Province, Dali City, Jisheqing Water Reserve (ḚZÎ保ḁ区), 25.7369°N, 100.1241°E, 2164 m elev., 13 July 2021, leg. J. Zhang.

Paratypes: 2♂ 2♀ ( MHBU-ARA-00023423 ), same data as holotype .

Etymology. The specific epithet is derived from the ancient name of Dali City: Yeyu City (叶dzẅ). Noun in apposition.

Diagnosis. The new species closely resembles E. ailao sp. nov., E. yangmei and E. shenjun in the genital morphology, but can be distinguished by: (1) the embolus straighter in ventral view; (2) the thinner RTA in retrolateral view; (3) the white setae on the carapace concentrated in certain area, rather than scattered around; (4) the spermathecae almost equal in length and width, smaller than 1/2 of the epigynal window in ventral view.

Description.Male. Habitus shown in Figs 121,123 .Carapace length2.087; abdomen length1.740.Measurements of eyes: AME 0.369, ALE 0.234, PME 0.064, PLE 0.227. Measurements of legs: I 3.784 (1.209, 0.599, 0.914, 0.600, 0.462), II 3.297 (1.075, 0.469, 0.782, 0.551, 0.420), III 3.545 (1.203, 0.479, 0.720, 0.735, 0.408), IV 3.990 (1.239, 0.500, 0.868, 0.931, 0.452); leg formula: 4132. Color in ethanol: carapace dark brown, covered with yellowish setae. Abdomen dark, with yellow and brown bands. Chelicera ( Fig. 125 ) with two promarginal and one retromarginal teeth. Palp ( Figs 126–127 , 130–132 ): distal femur, patella and tibia with long white setae; embolic disc large, partly hidden by tegulum in ventral view, slightly tilted retrolaterally; embolus tapered, relatively straight in ventral view; CyF notably extended; RTA tapered.

Female. Habitus shown in Figs 122, 124 . Carapace length 1.779; abdomen length 2.473. Measurements of eyes: AME 0.385, ALE 0.232, PME 0.076, PLE 0.219. Measurements of legs: I 2.798 (0.961, 0.339, 0.701, 0.462, 0.335), II 2.567 (0.900, 0.363, 0.585, 0.381, 0.338), III 2.943 (0.987, 0.348, 0.621, 0.611, 0.376), IV 3.589 (1.225, 0.402, 0.686, 0.810, 0.466); leg formula: 4312. Color in ethanol: like that of male. Chelicerae as in male. Epigyne ( Figs 128–129 , 133–134 ): epigynal window large; copulatory openings located at anterior margin of epigynal window; copulatory ducts running anteriorly to copulatory openings, with developed accessory glands; spermathecae circular.

Distribution. China (Yunnan).

Figures

FIGURES 115–120. Euochin yeyu sp. nov., male (115–117) and female (118–120). Figures are copyright © Kun Yu.

FIGURES 121–129. Euochin yeyu sp. nov., holotype male (121, 123, 125–127) and paratype female (122, 124, 128–129). 121–122. Habitus, in dorsal view; 123–124. Carapace, in frontal view; 125. Left male chelicera; 126. Left male palp of holotype, in ventral view; 127. Detail of RTA in retrolateral view; 128–129 Epigyne of paratype, in ventral (128) and dorsal (129) views.

FIGURES 130–134. Genitalia of Euochin yeyu sp. nov.. 130–132. Left male palp of holotype, in prolateral (130), ventral (131) and retrolateral (132) views; 133–134. Epigyne of paratype, in ventral (133) and dorsal (134) views.