Colyttus yiwui, Lin & Li, 2020

Lin, Yejie & Li, Shuqiang, 2020, Two new genera and eight new species of jumping spiders (Araneae, Salticidae) from Xishuangbanna, Yunnan, China, ZooKeys 952, pp. 95-128 : 95

Colyttus yiwui sp. nov. Figures 1 , 2

Type material.

Holotype ♂(IZCAS-Ar40379), China: Yunnan: Xishuangbanna, Mengla County, Menglun Township, XTBG, Leprosy Village, 21.8932N, 101.2883E, elevation ca 550 m, 27.IX.2017, Zhigang Chen leg. Paratypes 7♂3♀(IZCAS-Ar40380-Ar40389), same data as holotype.

Etymology.

This species is named after Mr. Yiwu Zhu, who has helped us greatly with this research; noun (name) in genitive case.

Diagnosis.

The males of Colyttus yiwui sp. nov. are similar to C. proszynskii Caleb, Chatterjee, Tyagi, Kundu & Kumar, 2018 by having a similarly-shaped embolus. However, C. zhui sp. nov. can be distinguished by the well-developed tegular lobe (vs. less well-developed in C. proszynskii ), the ratio of the length of the embolus to the width of the embolic disc 1:1 (vs. 2:1 in C. proszynskii ), the curved embolic tip (vs. straight in C. proszynskii ) and the blunt lamella of the embolus (vs. pointed in C. proszynskii ).

Description.

Male (Figs 1 , 2C, E, G ). Total length 6.76. Carapace 3.36 long, 2.72 wide. Abdomen 3.40 long, 1.85 wide. Clypeus 0.05 high. Eye sizes and inter-distances: AME 0.67, ALE 0.45, PLE 0.43, AERW 2.21, PERW 2.12, EFL 1.44. Legs: I 6.93 (2.45 + 2.66 + 1.22 + 0.60), II 5.55 (1.63 + 2.15 + 1.22 + 0.55), III 5.81 (1.80 + 1.95 + 1.46 + 0.60), IV 6.04 (1.90 + 2.05 + 1.49 + 0.60). Carapace yellow-brown with black edge, eye region dark brown, with black rings around eyes. Fovea longitudinal, situated between PLEs. Clypeus black, covered with white setae. Chelicerae dark brown with two promarginal teeth and one retromarginal fissident tooth with two cusps. Endites, labium and sternum brown. Leg I black, other legs pale yellow except femora with black pattern. Abdomen elongated oval, dorsum with two pairs of muscle depressions medially, irregular yellow stripe across entire surface and bifurcated posteriorly, covered with brown setae and sparse, long setae; venter brown. Spinnerets brown.

Palp (Fig. 1A-C ): Tibia stocky, slightly wider than long, with relatively long RTA; cymbium longer than wide; bulb approximately as long as wide; lamella of embolus blunt, embolus long, connected to embolic disc, embolic tip curved.

Female (Fig. 2A, B, D, F, H ). Total length 4.82. Carapace 2.04 long, 1.63 wide. Abdomen 2.78 long, 1.61 wide. Clypeus 0.12 high. Eye sizes and inter-distances: AME 0.47, ALE 0.28, PLE 0.27, AERW 2.38, PERW 2.28, EFL 1.69. Legs: I 6.16 (1.96 + 2.43 + 1.16 + 0.61), II 5.00 (1.53 + 1.96 + 1.01 + 0.50), III 5.10 (1.59 + 1.66 + 1.31 + 0.54), IV 5.71 (1.66 + 1.98 + 1.53 + 0.54). Habitus similar to that of male except paler.

Epigyne (Fig. 2A, B ) as long as wide, windows large, separated by median septum; copulatory openings on each side of septum located posteriorly; copulatory ducts indistinct, primary spermathecae smaller than secondary spermathecae, overall U-shaped; fertilization ducts originating from the anterior entolatetal edge of secondary spermathecae, extending almost transversely.

Distribution.

Known only from the type locality in Yunnan, China.

Figures

Figure 1. Palp of Colyttus yiwui sp. nov., male holotype. A prolateral B ventral C retrolateral.

Figure 2. Colyttus yiwui sp. nov., female paratype and male holotype. A epigyne, ventral B vulva, dorsal C male holotype habitus, dorsal D female paratype habitus, dorsal E holotype habitus, ventral F frontal view of female paratype. G dorsal view of chelicerae, male holotype H dorsal view of chelicerae, female paratype.