Echinax baisha Lu & Li, 2023

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, pp. 17-42 : 17

publication ID

https://dx.doi.org/10.3897/zookeys.1165.102672

publication LSID

lsid:zoobank.org:pub:00A3E9D0-3E46-4F69-B5D1-1B16DAC47910

persistent identifier

https://treatment.plazi.org/id/13E3822C-A895-42EF-8CE7-97C0803DFB48

taxon LSID

lsid:zoobank.org:act:13E3822C-A895-42EF-8CE7-97C0803DFB48

treatment provided by

ZooKeys by Pensoft

scientific name

Echinax baisha Lu & Li
status

sp. nov.

Echinax baisha Lu & Li sp. nov.

Figs 3 View Figure 3 , 4 View Figure 4

Type material.

Holotype: 1♂ (IZCAS-Ar 44417), China, Hainan, Baisha, Yinggeling Nature Reserve, Yinggezui Protection Station, 19°03.049′N, 109°33.751′E, 663 m, hand catch in leaf litter, 25 August 2010, G. Zheng leg. Paratypes: 2♂ (IZCAS-Ar 44418, 44419), China, Hainan, Ledong, Jianfengling National Forest Park, Mingfenggu, 18°44.658′N, 108°50.435′E, 1017 m, 18 August 2010, G. Zheng leg.

Etymology.

The specific name refers to the type locality and is a noun in apposition.

Diagnosis.

The new species resembles E. hesperis Haddad, 2012 (cf. Figs 3 View Figure 3 , 4 View Figure 4 and Haddad 2012: 43, figs 3-4, 46, 56-59), as the males have a similar sperm duct (Fig. 3A-C View Figure 3 ). Males can be distinguished by the embolus that is relatively more curved apically (Fig. 3A-C View Figure 3 ; vs. embolus relatively slightly curved apically), and by the base of the embolus almost straight (Fig. 3B View Figure 3 ; vs. base of the embolus curved). Female unknown.

Description.

Male (holotype; Fig. 4A, B View Figure 4 ). 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. 3A-C View Figure 3 ). 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: L1/L2 = 1/2.

Variation.

Paratype males: total body length 3.72-4.87.

Distribution.

China (Hainan, type locality; Fig. 14 View Figure 14 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Corinnidae

Genus

Echinax