Microdipoena huisun, Zhang & Lin, 2023

Zhang, Qiuqiu & Lin, Yucheng, 2023, Phylogenetic placement of eight poorly known spiders of Microdipoena (Araneae, Mysmenidae), with descriptions of five new species, ZooKeys 1175, pp. 333-373 : 333

Microdipoena huisun sp. nov.

Fig. 10

Type material.

Holotype ♀ and paratype 4♀ (NHMSU-TW03), China: Taiwan Province, Nantou County, Huisun Forest Farm (24°05.279'N, 121°02.078'E; 788 m elev.), 1.VII.2013, G. Zheng leg.

Etymology.

The specific name is derived from the type locality; noun in apposition.

Diagnosis.

This new species differs from other species except for M. gongi , M. ogatai , and M. yinae by the nearly spherical spermathecae and having a small scape rather than a long, soft, membranous one (cf. Figs 10E, F , 13C , 14F , 17C ). It can be distinguished from M. gongi , M. ogatai , and M. yinae by the nearly spherical spermathecae and the narrower posterior sclerotized area of copulatory ducts (cf. Figs 10F , 9F , 19H and Ono 2007: fig. 70).

Description.

Female (holotype): Total length 0.76. Carapace 0.28 long, 0.29 wide, 0.28 high. Clypeus 0.07 high. Sternum 0.24 long, 0.19 wide. Abdomen 0.48 long, 0.48 wide, 0.50 high. Length of legs: I 0.94 (0.30, 0.08, 0.22, 0.16, 0.18); II 0.92 (0.32, 0.08, 0.22, 0.14, 0.16); III 0.70 (0.22, 0.08, 0.14, 0.12, 0.14); IV 0.94 (0.24, 0.08, 0.24, 0.18, 0.20).

Somatic characters

(Fig. 10A-C ). Coloration: carapace nearly silver-brown centrally, black marginally. Ocular base black. Chelicera, endites yellow, labium silver-brown, sternum pale yellow with four symmetrical black spots. Legs brown-black. Abdomen black with multiple symmetrical white spots dorsally, black with symmetrical white and yellow spots ventrally. Prosoma: carapace nearly pear-shaped in dorsal view. Cephalic part unraised. Sternum triangular, covered with sparse setae. Legs: covered with setae and bristles. Femurs I and II with sclerotized femoral spot. Abdomen: nearly oval in dorsal view, covered with sparse setae.

Epigyne (Fig. 10D-F ): scape nodular shape, very small. Copulatory duct membranous, coiled under the spermathecae. Paired spermathecae nearly globose, separated by nearly 3 × its diameter. Fertilization ducts membranous, inconspicuous.

Male. Unknown.

Distribution.

China (Taiwan).

Figures

Figure 9. Microdipoena gongi Yin, Peng & Bao, 2004, from Hunan of China A male palp, prolateral B male palp, retrolateral C male palp, apical D epigyne, ventral E vulva, ventral F vulva, dorsal. Abbreviations: CD = copulatory duct, Cy = cymbium, CyC = cymbial conductor, E = embolus, Pa = patella, PC = paracymbium, S = spermathecal, SD = spermatic duct, Sp = Scape, T = tegulum, Ti = tibia. Scale bars: 0.10 mm.

Figure 10. Microdipoena huisun sp. nov., female from Taiwan of China A habitus, dorsal B habitus, ventral C habitus, lateral D epigyne, ventral E vulva, ventral F vulva, dorsal. Abbreviations: CD = copulatory duct, S = spermathecal, Sp = Scape. Scale bars: 0.50 mm (A-C), 0.10 mm (D-F).

Figure 13. Microdipoena jobi Kraus, 1967 from Georgia A epigyne, ventral B vulva, ventral C vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = Scape. Scale bars: 0.10 mm.

Figure 14. Microdipoena lisu sp. nov., female from Yunnan of China A habitus, dorsal B habitus, ventral C habitus, lateral D epigyne, ventral E vulva, ventral F vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = Scape. Scale bars: 0.50 mm (A-C); 0.10 mm (D-F).

Figure 17. Microdipoena shenyang sp. nov. from Liaoning of China A epigyne, ventral B vulva, ventral C vulva, dorsal. Abbreviations: CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = scape. Scale bars: 0.10 mm.

Figure 19. Microdipoena yinae Lin & Li, 2013, from Sichuan of China A male habitus, dorsal B male habitus, ventral C male habitus, lateral D female habitus, dorsal E female habitus, ventral F female habitus, lateral G epigyne, ventral H vulva, dorsal. CD = copulatory duct, FD = fertilization duct, S = spermathecal, Sp = scape. Scale bars: 0.20 mm.