Echinax wuzhishan, Zhang & Zhang, 2023

Zhang, Lu & Zhang, Feng, 2023, Review of the genus Echinax Deeleman-Reinhold, 2001 from China (Araneae: Corinnidae), Zootaxa 5383 (1), pp. 39-56 : 43

Echinax wuzhishan sp. nov. （五Dz山NJu）

Fig. 3

Type material. Holotype ♀ (HBUARA#2023-109) from CHINA: Hainan Province, Wuzhishan County, Shuiman Town, Wuzhishan National Nature Reserve (18.90260708°N, 109.68967795°E, 856 m), 27.V.2023, leg. W. Wang.

Etymology. The species name is derived from the type locality.

Diagnosis. The female of this new species resembles E. breviducta sp. nov., by having short, J-shaped copulatory ducts, but can be distinguished by the dorsally curved middle copulatory ducts (vs curved anteriorly in E. breviducta sp. nov.) (cf. Fig. 3D with Fig. 2E ).

Description. Female (Holotype) ( Fig. 3A–B ). TL 5.88; CL 2.41, CW 2.04; AL 3.47, AW 2.84. Eye sizes and interdistances: AME 0.14, ALE 0.08, PME 0.09, PLE 0.08; AME–AME 0.26, AME–ALE 0.14, ALE–ALE 0.51, PME–PME 0.29, PME–PLE 0.17, PLE–PLE 0.60, ALE–PLE 0.13; MOA 0.22 long, anterior width 0.46, posterior width 0.61. Clypeal height 0.18. LL 0.15, LW 0.29. SL 1.26, SW 1.20. Measurements of legs: I 7.16 (2.19, 0.73, 1.79, 1.62, 0.83), II 6.92 (2.13, 0.69, 1.66, 1.65, 0.79), III 6.66 (1.84, 0.71, 1.54, 1.80, 0.77), IV 8.45 (2.39, 0.60, 2.08, 2.54, 0.84). Carapace yellowish, surface with radial mark and connecting eye field. Endites yellowish, with curved setae. Labium yellowish; sternum yellowish; legs yellowish. Abdomen oval, without sigilla, ventrally with longitudinal brown band. Dorsal scutum small, unconspicuous.

Epigyne as in Fig. 3C–D . Copulatory openings with arc-shaped edges ( Fig. 3C ). Copulatory ducts transverse, Jshaped, anterior of copulatory ducts initially straight, extended toward each other, then curved dorsally and ventrally ( Fig. 3D ). ST II kidney-shaped; ST I spherical, separated; middle spermathecae with wrinkles ( Fig. 3D ).

Male unknown.

Distribution. China (Hainan).

Figures

FIGURE 2. Echinax breviducta sp. nov.: A. male left palp, prolateral view; B. same, ventral view; C. same, retrolateral view; D. epigyne, ventral view; E. vulva, dorsal view.Abbreviations: E— embolus; T—tegulum; ST I—spermatheca I (posterior); ST II—spermatheca II (anterior); SD—sperm duct; CO—copulatory opening; CD— copulatory duct; FD—fertilization duct. Scale bars: 0.20 mm (A–C); 0.1 mm (D–E).

FIGURE 3. Echinax wuzhishan sp. nov.: A. female habitus, dorsal view; B. same, ventral view; C. epigyne, ventral view; D. vulva, dorsal view.Abbreviations: CO—copulatory opening; CD— copulatory duct; FD—fertilization duct; ST I—spermatheca I (posterior); ST II—spermatheca II (anterior). Scale bars: 1 mm (A–B); 0.1 mm (C–D).