Echinax baisha Lu & Li, 2023
- Dataset
- GBIF Backbone Taxonomy
- Rank
- SPECIES
- Published in
- Lu, Ying, Chu, Chang, Lin, Zixuan, Pham, Dinh-Sac, Li, Shuqiang, Yao, Zhiyuan (2023): Two new genera and five new species of Corinnidae Karsch, 1880 (Arachnida, Araneae) from China and Vietnam. ZooKeys 1165: 17-42, DOI: http://dx.doi.org/10.3897/zookeys.1165.102672, URL: http://dx.doi.org/10.3897/zookeys.1165.102672
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Corinnidae
- genus
- Echinax
- species
- Echinax baisha
description
Description. Male (holotype; Fig. 4 A, B). Total body length 4.31: carapace 1.88 long, 1.54 wide; abdomen 2.43 long, 1.29 wide. Carapace yellowish, with brown marginal bands, and brown median patterns. Fovea brown, longitudinal and shallow. Diameters of eyes: AME 0.11, ALE 0.05, PME 0.08, PLE 0.08. Eye interdistances: AME-AME 0.09, AME-ALE 0.03, PME-PME 0.15, PME-PLE 0.08, AME-PME 0.18, ALE-PLE 0.06. CRW / carapace width = 0.53. MOA 0.33 long, front width 0.28, back width 0.29. Chelicerae same color as carapace; with two promarginal teeth, two retromarginal teeth. Endites yellowish, longer than wide, apical margin with long, curved setae. Labium yellowish, 0.20 long, 0.36 wide. Sternum yellowish, shield-shaped, with marginal dark stripes posteriorly. Sternum 0.96 long, 0.89 wide. Legs yellowish, with few dorsal spots and rings. Measurements of legs: I 6.38 (1.92, 0.63, 1.60, 1.52, 0.71), II 6.10 (1.89, 0.59, 1.46, 1.49, 0.67), III 6.05 (1.74, 0.62, 1.40, 1.59, 0.70), IV 7.26 (2.06, 0.64, 1.68, 2.10, 0.78). Leg spination: tibiae I-II, IV with 3 pairs of ventral spines, III with two pairs of ventral spines; metatarsi I-III with two pairs of ventral spines, IV with three pairs of ventral spines. Abdomen cylindrical, yellowish, with two long brown median stripes in anterior part, marginal light brown bands and brown marks in posterior part; venter yellowish, anteriorly with brown scutum, with wide, longitudinal brown stripe. Spinnerets yellowish with brown patterns. Palp (Fig. 3 A-C). Tibia without retrolateral apophysis. Cymbium elongate, with three pairs of stout spatulate setae on dorsal surface. Tegulum long, 3 / 5 length of cymbium, with distinct, sinuous sperm duct. Embolus slender and screwed, making two turns, short and straight basally, curved and tapered apically, length of embolus: L 1 / L 2 = 1 / 2.
description
Figs 3, 4
diagnosis
Diagnosis. The new species resembles E. hesperis Haddad, 2012 (cf. Figs 3, 4 and Haddad 2012: 43, figs 3 - 4, 46, 56 - 59), as the males have a similar sperm duct (Fig. 3 A-C). Males can be distinguished by the embolus that is relatively more curved apically (Fig. 3 A-C; vs. embolus relatively slightly curved apically), and by the base of the embolus almost straight (Fig. 3 B; vs. base of the embolus curved). Female unknown.
distribution
Distribution. China (Hainan, type locality; Fig. 14).
etymology
Etymology. The specific name refers to the type locality and is a noun in apposition.
description
Description. Male (Figs 5 A – B, 6 A – C, 13 E – F). For a detailed description see Lu et al., 2023. Female (Fig. 5 C – D). TL 5.83; CL 2.65, CW 2.03; AL 3.23, AW 1.64. Eye sizes and interdistances: AME 0.16, ALE 0.10, PME 0.12, PLE 0.14; AME – AME 0.06, AME – ALE 0.03, ALE – ALE 0.42, PME – PME 0.16, PME – PLE 0.05, PLE – PLE 0.55, ALE – PLE 0.04; MOA 0.24 long, anterior width 0.32, posterior width 0.36. Clypeal height 0.22. LL 0.12, LW 0.31. SL 1.04, SW 0.96. Measurements of legs: I 8.62 (2.60, 0.81, 2.08, 2.15, 0.98), II 8.34 (2.46, 0.82, 2.00, 2.14, 0.92), III 8.18 (2.32, 0.82, 1.88, 2.19, 0.97), IV 10.00 (2.77, 0.85, 2.31, 3.01, 1.06). Carapace creamy, surface smooth; with radial marks, black feathery setae covering markings and dark marginal bands. Endites creamy, apical margin brown. Labium light brown; sternum creamy. Legs creamy, with half ring ventrally. Abdomen oval, creamy, with brown marks and small dorsal scutum. Epigyne as in Fig. 6 D – E. Copulatory openings situated laterally in epigastric plate, with arc-shaped edges (Fig. 6 D). Copulatory ducts approximately long, longer than receptacle, C-shaped, anterior of copulatory ducts parallel to posterior (Fig. 6 D – E). Spermathecae folded, with wrinkles, close to each other.
description
Figs 4 – 6, 13
diagnosis
Diagnosis: E. baisha is similar to E. oxyopoides and can be distinguished from it by: 1) the short, sickle-shaped embolus (vs long embolus in E. oxyopoides) (cf. Figs 6 A – C, 13 E with Figs 9 A – C, 13 A); 2) the slightly curved terminal part of embolus in retrolateral view (vs curved and C-shaped in E. oxyopoides) (cf. Fig. 13 H with Fig. 13 B); 3) posteriorly straight copulatory ducts (vs curved in E. oxyopoides) (cf. Fig. 6 E with Fig. 9 E).
distribution
Distribution. China (Hainan).
materials_examined
Material examined: CHINA: 1 ♂ (MHUB-ARA- 2011 - 2), Hainan Province, Cangjiang County, Bawang Mountains 30. Ⅴ. 2011, leg. F. Zhang. 1 ♀ (HBUARA # 2022 - 123), Hainan Province, Cangjiang County, Bawang Mountains, Baishi Tan scenic spot (19.131058 ° N, 109.056163 ° E, 739 m), 14. VII. 2022, leg. L. Zhang.
Name
- Homonyms
- Echinax baisha Lu & Li, 2023