Rhene triapophyses Peng, 1995

Wang, Cheng & Li, Shuqiang, 2022, On eleven species of jumping spiders from Xishuangbanna, China (Araneae, Salticidae), ZooKeys 1116, pp. 85-119 : 85

Rhene triapophyses Peng, 1995

Figs 14 , 15

Rhene triapophyses Peng, 1995: 35, figs 1-5 (male holotype, not examined); Peng 2020: 395, fig. 288a-e.

Material examined.

1♂ 3♀ (IZCAS-Ar42943-42946), China: Yunnan, Xishuangbanna, Mengla County, Menglun Town , Xishuangbanna Tropical Botanical Garden , Yulinjiegou (21°55.05'N, 101°16.24'E, ca 570 m alt.), 19.xii.2018, X. Mi et al. leg .; 1♂ 1♀ (IZCAS-Ar42947-42948), 1 site in Mafengzhai (21°53.45'N, 101°17.40'E, ca 543 m alt.), 29.ix.2019, Y. Tong et al. leg .

Diagnosis.

Rhene triapophyses Peng, 1995 closely resembles that of R. setipes Żabka, 1985 from China, Vietnam and Japan in the general shape of the habitus and copulatory organs, but it differs in the following: 1) embolic division includes two terminal apophyses (Fig. 14B ) versus only one terminal apophysis in R. setipes ( Żabka 1985: fig. 563); 2) anteromedially, retrolateral tibial apophysis extending antero-retrolaterally (Fig. 14C ) versus extending antero-prolaterally in R. setipes ( Żabka 1985: fig. 564); 3) female almost indistinguishable from R. setipes except in the form of the copulatory ducts and atria (Fig. 15A-C vs Tanikawa 1993: figs 10, 11).

Description.

Male (Figs 14 , 15D, E, G-I ). Total length 4.07. Carapace 1.93 long, 1.90 wide. Abdomen 2.30 long, 1.83 wide. Clypeus 0.08 high. Eye sizes and inter-distances: AME 0.42, ALE 0.22, PLE 0.20, AERW 1.43, PERW 1.87, EFL 1.24. Legs: I 4.66 (1.63, 1.85, 0.68, 0.50), II 3.19 (1.08, 1.13, 0.58, 0.40), III 2.98 (1.00, 0.98, 0.60, 0.40), IV 3.88 (1.33, 1.40, 0.75, 0.40). Carapace red-brown to dark brown, almost hexagonal, with large, irregular dark brown patch at center of eye field, covered with dense setae. Fovea indistinct. Chelicerae red-brown, with two promarginal teeth and one retromarginal tooth, the paturon covered by papillae, with distinct incision on anterior surface. Endites typical, bearing dark setae entally. Labium darker than endites. Sternum almost oval, bearing pale, thin setae. Legs I strongest, with enlarged femora, two pairs of ventral spines on tibia and three ventral spines on metatarsi, other legs yellow to dark brown, with slightly enlarged femora. Abdomen suboval, dorsum red-brown, yellow posteriorly, with an irregular, longitudinal dark patch anteromedially followed by a broad, transverse, dark brown band, covered with short, pale white, thin setae and wholly covered by large scutum; venter brown, with a pair of longitudinal, dark stripes medially.

Palp (Fig. 14A-D ): tibia almost as long as wide, with tapered retrolateral apophysis distally curved inward to a pointed tip; cymbium about 1.5 times longer than wide; bulb slightly swollen posteromedially, with tapered sperm duct, sinuous retrolaterally; embolus originating from middle of anterior margin of bulb, bar-shaped, blunt apically, division with two spiny apophyses.

Female (Fig. 15A-C, F ). Total length 4.32. Carapace 2.04 long, 1.96 wide. Abdomen 2.50 long, 1.86 wide. Clypeus 0.08 high. Eye sizes and inter-distances: AME 0.40, ALE 0.22, PLE 0.20, AERW 1.43, PERW 1.96, EFL 1.29. Legs: I 4.00 (1.45, 1.55, 0.55, 0.45), II 3.13 (1.08, 1.15, 0.50, 0.40), III 3.08 (1.03, 1.05, 0.60, 0.40), IV 4.09 (1.33, 1.53, 0.83, 0.40). Habitus similar to that of male except paler and without dorsal scutum on abdomen.

Epigyne (Fig. 15A-C ): wider than long, with broad posterior hood distant from epigastric furrow; atria paired, oval, separated from each other by slightly more than width of epigynal hood; copulatory ducts long, transversely extending before curving 90° then descending posteriorly, continuing into an S-shaped coil; spermathecae indistinct; fertilization ducts lamellar, extending anterolaterally.

Distribution.

China (Yunnan).

Comments.

The male of the new material is almost identical with the holotype in palpal and cheliceral structure except detail difference in the length of the apophyses of embolic division. Moreover, material studied in this paper were collected from the same locality as holotype in Menglun County, Xishuangbanna, China.

Figures

Figure 14. Rhene triapophyses, male palp A prolateral B ventral C retrolateral. Scale bars: 0.1.

Figure 15. Rhene triapophyses A, B epigyne, ventral C vulva, dorsal D male habitus, dorsal E ditto, ventral F female habitus, dorsal G male carapace, frontal H male chelicera, posterior I male leg I, prolateral. Scale bars: 0.1 (A-C, H); 0.5 (D-F, I); 0.2 (G).