Clubiona zhengi, Yu & Li, 2019

Yu, Hao & Li, Shuqiang, 2019, Eight new species of the genus Clubiona Latreille, 1804 from Xishuangbanna Rainforest, southwestern China (Araneae, Clubionidae), Zootaxa 4545 (2), pp. 151-178 : 167-168

Clubiona zhengi sp. nov.

Figs 11–12

Type material. Holotype: ♂ (IZCAS Ar 34583), CHINA: Yunnan: Xishuangbanna, Mengla County, Menglun Town , Menglun Nature Reserve , Rubber plantation (N21°54.498', E101°16.326', 586 m), 17 July 2007, leg. G. Zheng (Fogging-XZII). Paratypes: CHINA: Yunnan: Xishuangbanna, Mengla County, Menglun Town , Menglun Nature Reserve , leg. G. Zheng: 5♂, 2♀ ( IZCAS Ar 34584–34589, 34591), same data as holotype ; 1♂, 1♀ ( IZCAS Ar 34592–34593), Rubber plantation (N21°54.463', E101°15.978', 569 m), 21 July 2007 (Fogging-XZIII) ; 1♂ ( IZCAS Ar 34594), Anogeissus acuminata plantation (N21°53.993', E101°16.810', 611 m), 19 August 2007 (Fogging-RZIV) ; 1♀ ( IZCAS Ar 34595), Secondary tropical seasonal moist forest (N21°54.984', E101°16.982', 656 m), 16¯ 31 January 2007 (Pitfall traps JSII-3-12) ; 1♀ ( IZCAS Ar 34 596), Secondary tropical seasonal moist forest (N21°54.718', E101°16.940', 645 m), 1¯ 15 April 2007 (Pitfall traps JSI-4-17) ; 1♂ ( IZCAS Ar 34597), Secondary tropical seasonal moist forest (N21°54.718', E101°16.940', 645 m), 16¯ 31 March 2007 (Pitfall traps JSI- 5-16) ; leg. G. Tang and Z. Y. Yao: 1♀ ( IZCAS Ar 34598), Rubber Plantation (N21°54.695', E101°16.392', 593 m), 12 November 2009 ( Tang-Yao _ No. 2) ; 1♂ ( IZCAS Ar 34599), Lvshilin Forest Park, Limestone tropical seasonal rain forest (N21°54.600', E101°17.084', 640 m), 17 November 2009 ( Tang-Yao _ No. 12) ; 1 ♀ ( IZCAS Ar 34590), Lvshilin Forest Park, Limestone tropical seasonal rain forest (N21°54.609´, E101°17.090´, 643 m), 17 November 2009 ( Tang-Yao _ No. 13) ; 1♀ ( IZCAS Ar 34600), G213 roadside, Bamboo plantation (N21°54.386', E101°16.803', 627 m), 22 November 2009 ( Tang-Yao _ No. 18) ; 1♀ ( IZCAS Ar 34601), Garbage dump, Secondary tropical forest (N21°54.380', E101°16.815', 627 m), 23 November 2009 ( Tang-Yao _ No. 20) ; 1♀ ( IZCAS Ar 34602), G213 roadside, high plantation forest (N21°54.213', E101°16.927', 590 m), 24 November 2009 (Tang-Yao _ No. 23) ; 1♀ ( IZCAS Ar 34603), G213 Roadside, Anogeissus acuminate Plantation (N21°53.819', E101°17.075', 609 m), 27 November 2009 ( Tang-Yao _ No. 28) .

Etymology. The specific name is a patronym after Guo Zheng, collector of several specimens examined in this study; name in genitive case.

Diagnosis. Clubiona zhengi sp. nov. can be easily distinguished from all known congeners by the combination of the following characters: male palpal tibial with two apophyses ( Fig. 11B ); retrolateral tibial apophysis laminar broad, flat and with a straight apical margin ( Fig. 11B ); ventral tibial apophysis finger-shaped, elevated from a pit ( Fig. 11B ); female epigynal plate with an atrium ( Figs 12 A–B).

Description. Male (holotype): Total length 2.84; prosoma 1.14 long, 0.71 wide; opisthosoma 1.65 long, 0.83 wide. Prosoma ( Figs 12 E–F), ovoid in dorsal view, ocular region slightly narrowed, widest between coxae II and III; in profile slightly higher just behind ocular area, gradually sloping posteriorly; integument smooth, clothed with numerous short fine hairs. Carapace yellowish, without distinct color pattern; longitudinal fovea reddish. Chelicerae protruding and light brown, with four promarginal and three retromarginal teeth. Labium and endites orange, longer than wide. Sternum orange-yellow. Eyes: AER slightly recurved, PER wider than AER and slightly procurved in dorsal view. AME dark, other eyes light; with black rings. Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.06, PLE 0.06, AME–AME 0.05, AME–ALE 0.02, PME–PME 0.11, PME–PLE 0.04, MOQL 0.14, MOQA 0.18, MOQP 0.24. Legs yellowish, without distinct color markings. Leg formula: IV, I, II, III; leg measurements: I 2.91 (0.86, 0.45, 0.84, 0.51, 0.25), II 2.85 (0.92, 0.41, 0.71, 0.55, 0.25), III 2.06 (0.65, 0.33, 0.43, 0.44, 0.20), IV 3.60 (1.03, 0.36, 0.84, 1.04, 0.33). Opisthosoma ( Figs 12 E–F) elongate-oval, with some irregular color markings dorsally and laterally; dorsum with a pairs of muscular depressions; with conspicuous anterior hair tufts; venter and spinnerets light yellow. Palp ( Figs 11 A–E): tibia short, with two apophyses, VTA finger-like, elevated from a pit, base fused with base of RTA; RTA large and lamina-shaped, with a straight tip; genital bulb elongated, with a relatively flat tegulum, sperm duct distinctive, V-shaped; tegular hump indistinct; embolus inserted prolaterally (approximately nine o’clock relative of tegulum), aligned clockwise along the tegular distal margin, apex approximately at six o’clock position relative of tegulum.

Female (paratype IZCAS Ar 34590): Total length 3.08; prosoma 1.29 long, 0.83 wide; opisthosoma 1.86 long, 0.73 wide. Not strikingly different from males but darker in color ( Figs 12 G–H). Eye sizes and interdistances: AME 0.05, ALE 0.05, PME 0.06, PLE 0.03, AME–AME 0.06, AME–ALE 0.02, PME–PME 0.13, PME–PLE 0.04, MOQL 0.16, MOQA 0.14, MOQP 0.23. Legs yellowish, without distinct color markings. Leg formula: IV, II, I, III; leg measurements: I 2.57 (0.79, 0.42, 0.72, 0.43, 0.22), II 2.61 (0.82, 0.44, 0.80, 0.33, 0.22), III 2.06 (0.67, 0.33, 0.32, 0.51, 0.24), IV 3.17 (0.99, 0.37, 0.49, 0.97, 0.36). Epigyne ( Figs 12 A–D): Epigynal plate slightly longer than wide, posterior margin not rebordered; atrium large, located at posterior portion of epigynal plate; spermathecae, burse and copulatory ducts well visible through epigynal plate in ventral view; two copulatory openings large and conjoined; copulatory ducts thick, describing a π-shaped course in ventral view, ascending in parallel, bent vertically and directed ventrally to connect to spermathecae; ovoid spermathecae, situated anteriorly, connecting to posterior bursae; bursae globular, slightly larger than spermathecae; fertilization ducts short, located on dorsal-inner surface of spermathecae.

Distribution. Presently known only from the type locality.

Figures

FIGURE 11. Clubiona zhengi sp. nov., male holotype: A–B, left palp (A prolateral view; B retrolateral view); C–E, left palpal bulb (C prolateral view; D ventral view; E retrolateral view). Abbreviatures: E, embolus; EB, embolic base; RTA, retrolateral tibial apophysis; TH, tegular hump; VTA, ventral tibial apophysis. Scale bars: 0.10 mm (A–B, C–E in the same scale).

FIGURE 12. Clubiona zhengi sp. nov., male holotype (E–F) and female paratype (A–D, G–H): A–B, epigyne, ventral view (A uncleared; B cleared); C–D, vulva, dorsal view (C cleared; D cleared and embedded in Arabic gum); E–H, habitus (E, G dorsal view; F lateral view; H ventral view). Abbreviatures: A, epigynal atrium; BS, bursa; CD, copulatory duct; CO, copulatory opening; SP, spermatheca. Scale bars: 0.10 mm (A–D in the same scale); 1 mm (E–F, G–H in the same scale).