Indomarengo yui Wang & Li, 2020

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

Indomarengo yui Wang & Li, 2020

Fig. 11

Indomarengo yui Wang & Li, 2020b: 51, figs 5A-D, 6A-E (male holotype, examined).

Material examined.

1♂ 1♀ (IZCAS-Ar42936-42937), China: Yunnan: Xishuangbanna, Mengla County, Huigang Village , Xilu habitat restoration area, seasonal rainforest (21°37.05'N, 101°35.27'E, 760 ± 25 m alt.), 12.xii.2012, Q. Zhao and Z. Chen leg. ; 1♀ (IZCAS-Ar42938), Menglun Nature Reserve , secondary tropical forest, around garbage dump (21°54.17'N, 101°16.87'E, ca 610 m alt.), 31.xii.2018 , Z. Bai et al. leg.

Diagnosis.

The male was thoroughly diagnosed by Wang and Li (2020b). The female resembles that of I. thomsoni (Wanless, 1978) from Borneo in having a similar epigyne, but it can be easily distinguished by the paired atria and L-shaped spermathecae (Fig. 11A-C ), whereas there is a single atrium and irregular spermathecae in I. thomsoni ( Wanless 1978b: fig. 8B, D, E). The species also resembles Philates chelifer from Indonesia, but it can be easily distinguished by having the abdomen with pair of round patches and a transverse band anteriorly (Fig. 11E ), which are absent in P. chelifer , and by the L-shaped spermathecae (Fig. 11C ), which are almost U-shaped in P. chelifer ( Benjamin 2004: fig. 26C).

Description.

Male (Fig. 11D ). See Wang and Li (2020b).

Female (Fig. 11A-C, E-G ). Total length 3.20. Carapace 1.20 long, 0.79 wide. Abdomen 1.73 long, 0.76 wide. Clypeus almost invisible. Eye sizes and inter-distances: AME 0.28, ALE 0.12, PLE 0.11, AERW 0.73, PERW 0.78, EFL 0.51. Legs: I 2.48 (0.68, 1.05, 0.55, 0.20), II 1.57 (0.48, 0.58, 0.33, 0.18), III 1.51 (0.48, 0.50, 0.35, 0.18), IV 2.07 (0.64, 0.80, 0.45, 0.18). Carapace flat, red-brown to dark, covered with thin setae, bearing four clusters of white scales. Chelicerae, endites, labium, sternum, and legs similar to that of male. Abdomen elongated, dorsum brown to dark brown, with subtrapezoid sclerite, pair of round pale patches near anterior margin, followed by transverse pale band bearing pair of white patches at lateral margins; venter pale.

Epigyne (Fig. 11A-C ): longer than wide, with arched atrial ridge anteriorly; atria paired, oval, nearly touching; copulatory openings located at base of atria; copulatory ducts posterolaterally extending before returning to the middle part, then continuing, coiled into two semicircles, connecting to the lateral sides of spermathecae; spermathecae prominent, almost L-shaped, with small, hemispheric processes at anterior margins; fertilization ducts originating from anterior portions of longitudinal extensions of spermathecae.

Distribution.

Known only from the type locality in Yunnan, China.

Figures

Figure 11. Indomarengo yui A, B epigyne, ventral C vulva, dorsal D male habitus, dorsal E female habitus, dorsal F ditto, lateral G ditto, ventral. Scale bars: 0.1 (A-C); 0.5 (D-G).