Megaeupoa yanfengi, 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

Megaeupoa yanfengi sp. nov. Figures 9 , 10 , 11

Type material.

Holotype ♂(IZCAS-Ar40906), China: Yunnan: Xishuangbanna, Mengla County, Menglun Township, XTBG, Leprosy Village, 21.8932N, 101.2883E, elevation ca 550 m, 27.IX.2017, Zhigang Chen, Yunchun Li, Qingyuan Zhao and Jincheng Liu leg. Paratypes 1♂3♀(IZCAS-Ar40907-Ar40910), same locality as holotype, but 19.IX.2012, Yanfeng Tong leg.

Etymology.

The species is named after Mr. Yanfeng Tong, who has helped us greatly with this research; noun (name) in genitive case.

Species compared.

Megaeupoa gravelyi comb. nov., originally described as Brettus gravelyi Caleb in Caleb, Acharya and Kumar (2018).

Diagnosis.

The male of Megaeupoa yanfengi sp. nov. resembles M. gravelyi in having a stout RTA, a long, undulate embolus and a membranous conductor but differs in the following: the RTA terminus is flat in ventral view (vs. subtriangular in M. gravelyi ), the median apophysis is stout (vs. pointed in M. gravelyi ), the inferior terminal apophysis is present, the terminal apophysis is semicircular (vs. inferior terminal apophysis absent and terminal apophysis subtriangular in M. gravelyi ), and the lateral terminal apophysis wraps around the terminal apophysis (vs. next to terminal apophysis in M. gravelyi ).

Description.

Male (Figs 9 , 10 , 11C-E, G-H ). Total length 5.64. Carapace 2.23 long, 1.74 wide. Abdomen 2.94 long, 1.33 wide. Clypeus 0.09 high. Eye sizes and inter-distances: AME 0.59, ALE 0.36, PLE 0.33, AERW 1.64, PERW 1.57, EFL 1.10. Legs: I 4.48 (1.36 + 1.64 + 0.89 + 0.59), II 4.28 (1.30 + 1.53 + 0.87 + 0.58), III 4.48 (1.33 + 1.50 + 1.02 + 0.63), IV 6.12 (1.84 + 1.98 + 1.63 + 0.67). Carapace red-brown, covered with dense, brown setae, posteriorly with white stripes of setae, cephalic part black. Fovea longitudinal. Clypeus black to brown, covered with several white setae. Chelicerae yellow-brown, with five promarginal and nine retromarginal teeth. Endites pale brown. Labium pale brown, covered with brown setae. Sternum colored as endites, covered with brown setae. Legs brown, with long, white, dense setal annulations. Abdomen elongated oval, dorsum with one pair of stripes with dense, white setae, transverse dark brown stripes medially; venter pale brown, covered with setae.

Palp (Figs 9A-D , 10A, B ): Patella covered with dense, white setae dorsally; tibia slightly wider than long, with subtriangular ventral apophysis, RTA stout, slightly longer than wide in lateral view, terminus flat; cymbium longer than wide; bulb longer than wide; embolus filiform, undulate, half of embolus obscured by embolic sheath, other half enclosed by lateral terminal apophysis; conductor membranous, sheet-shaped, adjacent to embolus; median apophysis three times longer than wide, stout; inferior terminal apophysis thin, four times longer than wide, lateral terminal apophysis filiform, embolus curled circularly, terminal apophysis semicircular.

Female (Fig. 11A, B, F ). Total length 5.51. Carapace 2.35 long, 1.76 wide. Abdomen 3.09 long, 1.90 wide. Clypeus 0.09 high. Eye sizes and inter-distances: AME 0.62, ALE 0.37, PLE 0.26, AERW 1.87, PERW 1.71, EFL 1.22. Legs: I 4.29 (1.34 + 1.53 + 0.84 + 0.58), II 4.08 (1.27 + 1.38 + 0.88 + 0.55), III 4.33 (1.23 + 1.48 + 1.01 + 0.61), IV 5.81 (1.59 + 2.01 + 1.50 + 0.71). Habitus similar to that of male.

Epigyne (Fig. 11A, B ) as long as wide; hood located posteriorly; windows large, oval; copulatory openings located medially; copulatory ducts curled on either side with two pairs of spermathecae; primary spermathecae small, situated anteriorly, secondary spermathecae larger than primary spermathecae.

Distribution.

Known only from the type locality in Yunnan, China.

Figures

Figure 9. Palp of Megaeupoa yanfengi sp. nov. A-C male holotype; D male paratype. A prolateral B retrolateral C ventral D bulb, posterior.

Figure 10. Right palp of Megaeupoa yanfengi sp. nov., male paratype (images flipped horizontally). A prolateral B retrolateral.

Figure 11. Megaeupoa yanfengi sp. nov., female paratype and male holotype. A epigyne, ventral B vulva, dorsal and schematic duct course shown in lateral view C male holotype habitus, lateral D male paratype habitus, ventral E male paratype habitus, lateral F female habitus, dorsal G frontal view of male paratype H dorsal view of chelicerae, paratype male.