Clubiona subhuiming, Wu & Chen & Zhang, 2023

Wu, Panlong, Chen, Yang & Zhang, Feng, 2023, Three new species of the Clubiona corticalis group (Araneae, Clubionidae) from China, ZooKeys 1157, pp. 163-176 : 163

Clubiona subhuiming sp. nov.

Figs 6 , 7

Type material.

Holotype: China • ♂; Hunan Province, Sangzhi County, Bamaoxi Town, Xiaozhuangping Village (29°47'30''N, 110°05'15''E, 1582 m elev.), 3 November 2018, Yang Chen leg. Paratypes: • 1♀, same data as holotype.

Etymology.

The specific name is the combination of the prefix sub - (near) and huiming, referring to its similarity to C. huiming Wang, Zhang & Zhang, 2018.

Diagnosis.

The male of the new species is similar to C. huiming ( Wang et al. 2018: figs 8, 9), but differs from the latter by the presence of 2 patellar apophyses (vs. 0), the smaller conductor width/genital bulb width ratio (0.4 vs. 0.7). The female of the new species is similar to C. subapplanata Wang, Zhang & Zhang, 2018 ( Wang et al. 2018: figs 14, 15), but differs from the latter by having 2 separate copulatory openings (vs. conjoined) and coiled copulatory ducts (vs. s-shaped).

Description.

Male (Fig. 6B ). Holotype total length 3.31. Carapace 1.59 long, 1.18 wide; abdomen 1.83 long, 1.04 wide. Carapace pale yellow. Median furrow longitudinal, slightly elevated above on the carapace. In dorsal view, both anterior eye row and posterior eye row recurved. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.09, PLE 0.10; AME-AME 0.06, AME-ALE 0.03, PME-PME 0.14, PME-PLE 0.10, ALE-PLE 0.05. MOA 0.22 long, front width 0.20, back width 0.32. Clypeus height 0.05. Chelicerae yellowish, promargin with 5 teeth, retromargin with 4 teeth. Endites yellow, longer than wide. Labium yellow-brown, 0.20 long, 0.20 wide. Sternum 0.93 long, 0.63 wide. Abdomen oval, pale yellow, with conspicuous anterior tufts of setae; abdomen dorsum with fine, yellow hairs; venter yellow. Spinnerets and legs yellowish brown. Leg measurements: I 3.93 (1.19, 0.49, 1.06, 0.77, 0.42), II 4.26 (1.29, 0.50, 1.20, 0.81, 0.46), III 3.66 (1.07, 0.34, 0.96, 0.93, 0.36), IV 5.14 (1.47, 0.54, 1.20, 1.48, 0.45). Leg formula: 4-2-1-3.

Palp (Figs 6E-G , 7C, D ). Patella length/width ratio 1.1, with 2 small, wide apophyses; RPA almost as long as VPA. Patella length/tibia length ratio 2.1. Tibia length/width ratio 1.4, with three apophyses, distal RTA almost conical in retrolateral view; basic RTA short, wide, and located retrolaterally; VTA thumb-shaped in ventral view, almost as long as distal RTA. Cymbium length/tibia length ratio 3.0. Cymbium length/width ratio 1.8. Genital bulb inflated, with a depression at about the 9 o’clock position. Embolus long and coiled, originated at about the 12 o’clock position, then circled clockwise, and terminated at about the 1 o’clock position. Conductor V-shaped in retrolateral view, wide in mid-part, tapering toward its apex. Sperm duct obvious, U-shaped in ventral view.

Female (Fig. 6A ). Total length 4.04. Carapace 1.85 long, 1.33 wide; abdomen 2.16 long, 1.41 wide. Eyes sizes and interdistances: AME 0.06, ALE 0.11, PME 0.09, PLE 0.10; AME-AME 0.10, AME-ALE 0.06, PME-PME 0.20, PME-PLE 0.13, ALE-PLE 0.10. MOA 0.24 long, front width 0.24, back width 0.39. Clypeus height 0.05. Labium 0.29 long, 0.27 wide. Sternum 1.07 long, 0.72 wide. Leg measurements: I 3.71 (1.11, 0.54, 0.97, 0.66, 0.43), II 4.01 (1.18, 0.59, 1.06, 0.71, 0.47), III 3.33 (0.87, 0.47, 0.79, 0.86, 0.34), IV 5.20 (1.47, 0.61, 1.19, 1.36, 0.57). Leg formula: 4-2-1-3. Coloration darker than in male. Other characters as in male.

Epigyne (Figs 6C, D , 7A, B ). Epigynal plate as long as wide, with strong sclerotised anterior part. Copulatory openings separated from each other, and meso-laterally located. Copulatory duct coiled, almost as long as bursa perimeter. Spermathecae duct-shaped, located on ventral-lateral surface of bursae. Bursae almost spherical, situated posteriorly. Fertilisation ducts lance-shaped, membranous, located on dorsal-anterior surface of bursae.

Distribution.

Presently known only from Hunan, China.

Figures

Figure 6. Clubiona subhuiming sp. nov. A female habitus B male habitus C epigyne, ventral view D vulva, dorsal view. Left male palp: E prolateral view F ventral view G retrolateral view. Scale bars: 1 mm (A, B); 0.1 mm (C, D); 0.2 mm (E-G).

Figure 7. Clubiona subhuiming sp. nov. A epigyne, ventral view B vulva, dorsal view. Left male palp: C ventral view D retrolateral view. Scale bars: 0.25 mm (A-D).