Hypsosinga zioni, Mi & Li & Pham, 2023

Mi, Xiaoqi, Li, Shuqiang & Pham, Dinh-Sac, 2023, On five new species of the genera Araneus and Hypsosinga (Araneae, Araneidae) from Vietnam, ZooKeys 1161, pp. 69-87 : 69

Hypsosinga zioni sp. nov.

Figs 8 , 10E-H

Type material.

Holotype ♀ (IZCAS-Ar44150), Vietnam: Cao Bang Province, Sac Ha Village,17.VII.2000, Dinh-Sac Pham leg. Paratypes: 1 ♀ (IZCAS-Ar44151), Ha Giang Province, Gao Bao Village, 9.XII.2000, Dinh-Sac Pham leg.; 1 ♀ (IZCAS-Ar44152), Cao Bang Province, Sac Ha Village, 17.VII.2000, Dinh-Sac Pham leg.

Etymology.

The species name is a boy’s name from Vietnam; noun (name) in genitive case.

Diagnosis.

The new species resembles the female of H. ryani sp. nov. in appearance, but it can be distinguished from the latter in having: 1) the epigyne with scape (Fig. 8A-D ) vs scape lacking (Fig. 6A ); 2) the copulatory openings situated on the posterior surface of the epigyne (Fig. 8C, D ) vs on the ventral surface (Fig. 6A ); 3) the spermathecae touching each other (Fig. 8D ) vs apart (Fig. 6B, C ); and 4) dorsum of abdomen with three transverse bands (Fig. 8E ) vs only one band (Fig. 6D ).

Description.

Female (holotype, Figs 8 , 10E-H ). Total length 2.65. Carapace 1.10 long, 0.80 wide. Abdomen 1.70 long, 1.40 wide. Clypeus 0.13 high. Eye sizes and interdistances: AME 0.06, ALE 0.06, PME 0.10, PLE 0.08, AME-AME 0.10, AME-ALE 0.13, PME-PME 0.10, PME-PLE 0.15, MOA length 0.23, anterior width 0.20, posterior width 0.25. Leg measurements: I 3.05 (0.95, 1.05, 0.65, 0.40), II 2.70 (0.85, 0.90, 0.55, 0.40), III 1.95 (0.65, 0.65, 0.35, 0.30), IV 3.00 (1.00, 1.00, 0.60, 0.40). Carapace reddish brown; cervical groove distinct; foeva depressed. Chelicerae yellowish brown; four promarginal and two retromarginal teeth. Endites and labium dark brown at base, and paler distally. Sternum dark brown, with dark setae. Legs yellowish brown; leg III and IV with grayish brown annuli. Abdomen oval, rounded anteriorly, with a pair of lateral humps posteriorly; dorsum yellowish brown with a longitudinal median white band and three transverse white bands; also with a pair of lateral white patches; venter dark brown, with lateral pale patches. Spinnerets yellow.

Epigyne (Fig. 8A-D ): scape short thick, ~2.0 × wider than long in posterior view; copulatory openings elliptical, situated on lateral edge of posterior surface; copulatory ducts slightly longer than spermatheca diameter, curved about 90°; spermathecae globular, touching each other.

Male. Unknown.

Variation.

Total length: ♀♀ 2.60-2.75.

Distribution.

Vietnam (Cao Bang and Ha Giang provinces).

Figures

Figure 6. Hypsosinga ryani sp. nov. A-E female paratype IZCAS-Ar 44149 F, G male holotype A epigyne, ventral view B vulva, posterior view C ibid., dorsal view D habitus, dorsal view E ibid., ventral view F ibid., dorsal view G ibid., lateral view. Scale bars: 0.1 mm (A-C); 1 mm (D-G).

Figure 8. Hypsosinga zioni sp. nov., female holotype A epigyne, ventral view B ibid., anterior view C ibid., posterior view D vulva, posterior view E habitus, dorsal view F ibid., ventral view G ibid., lateral view. Scale bars: 0.1 mm (A-D); 1 mm (E-G).

Figure 10. Legs of the new species, holotypes, prolateral view A-D Hypsosinga ryani sp. nov. E-F Hypsosinga zioni sp. nov. A, E legs I B, F legs II C, G legs III D, H legs IV. Scale bars: 1 mm.