Clubiona suthepica Dankittipakul, 2008

Zhang, Jianshuang, Yu, Hao & Li, Shuqiang, 2021, Taxonomic studies on the sac spider genus Clubiona (Araneae, Clubionidae) from Xishuangbanna Rainforest, China, ZooKeys 1034, pp. 1-163 : 1

Clubiona suthepica Dankittipakul, 2008 Figs 46 , 47 , 59D , 69D , 79E , 87E , 95E

Clubiona suthepica Dankittipakul, in Dankittipakul and Singtripop 2008a 42, figs 22, 23, 55-58 (♂ only, ♀ mismatched).

Material examined.

1♂, China: Yunnan Province: Xishuangbanna: Mengla County: Menglun Town : XTBG, secondary tropical montane evergreen broad-leaved forest, 21°57.534'N, 101°12.300'E, ca. 860 m, 4.VIII.2007, Guo Zheng leg ; 1♂ (YHCLU0114), XTBG, 48th km landmark in Menglun Nature Reserve , 21°58.704'N, 101°19.748'E, ca. 1088 m, 12.VIII.2011 , G. Zheng et al. leg; 1♀ (YHCLU0209), XTBG, 48th km landmark in Menglun Nature Reserve , 21°58.764'N, 101°19.748'E, ca. 1038 m, 10.VIII.2011, Q.Y. Zhao and Z.G. Chen leg.

Diagnosis.

Females of C. suthepica can be easily distinguished from other members of the group by the heavily sclerotised anterior margin of the atrium (Figs 47A, B , 79E , 87E ). The male of C. suthepica differs from other members of the group by having a hook-shaped retrolateral tibial apophysis (Figs 46B , 69D ) (vs. retrolateral tibial apophysis variable but not hook-shaped; for example, triangular in C. melanosticta and C. zhanggureni , hammer-like or clavate in C. banna sp. nov., digitiform in C. lala and C. yueya .; Figs 68C , 69A, B , 70B, D ), the conductor apex terminating at ca. 9 o’clock position (Figs 46B , 59D ) (vs. relatively shorter tip terminating at ca. 7-8 o’clock position in other species of the group; Figs 58C , 59A-C , 60A-D ).

Description.

Male. See Dankittipakul and Singtripop (2008a). Palp as in Figs 46 , 59D , 69D , habitus as in Fig. 47E, F .

Female. (Fig. 47G, H ): Total length 6.46; carapace 2.63 long, 1.88 wide; opisthosoma 3.83 long, 2.16 wide. Carapace brown, distinctly dark brown in ocular area, with a distinctive pattern on pars cephalica consisting of a pair of dark lateral bands and Ψ-shaped markings behind PER; ocular area slightly narrowed, cervical groove and radial grooves indistinguishable; tegument smooth, clothed with short setae. Eyes: AER slightly recurved, PER slightly wider than AER, almost straight in dorsal view. Eye sizes and interdistances: AME 0.14, ALE 0.15, PME 0.14, PLE 0.13, AME-AME 0.13, AME-ALE 0.10, PME-PME 0.28, PME-PLE 0.20, MOQL 0.39, MOQA 0.37, MOQP 0.54. Chelicerae robust and dark brownish red, cheliceral furrow with three anterior and two posterior teeth. Sternum light yellow, 1.02 long, 0.68 wide. Labium and endites orange. Legs light yellow, femora with a broad distal band occupying almost half its length; tibiae with broad distal and proximal annuli; metatarsi with dark, thin distal annulus; tarsi pale yellow. Leg measurements: I 6.21 (1.83, 2.44, 1.17, 0.77), II 6.43 (1.89, 2.44, 1.28, 0.83), III 5.37 (1.65, 1.80, 1.34, 0.59), IV 7.35 (1.92, 2.57, 2.14, 0.73). Abdomen oval, with conspicuous anterior setal tufts, dorsum with dense grey setae and a broken purplish median band, half opisthosoma length, posteriorly with paired purplish markings consisting of numerous stripes and spots; venter yellowish white, medially with a longitudinal and linear marking.

Epigyne (Figs 47A-D , 79E , 87E , 95E ). Epigynal plate nearly square, copulatory ducts visible through transparent integument, ca. 1/3 epigyne width. Anterior margin (or hood) heavily sclerotised, M-shaped, distinctly wide, almost equal to epigyne width. Copulatory openings indistinct, located in the hood. Copulatory ducts relatively long, nearly equal to bursal diameter. Spermathecae consisting of fan-shaped head and lobe-shaped base, with small fertilisation ducts terminally; the two spermathecal bases separated by 1.2 × length. Bursae close together, more or less spherical, surface translucent and wrinkled.

Distribution.

Thailand (Chiang Mai), China (Yunnan).

Remarks.

The female of the species is described for the first time.

Figures

Figure 46. Male palp of Clubiona suthepica A prolateral view B retrolateral view C bulb, prolateral view D bulb, ventral view E bulb, retrolateral view. Abbreviations: C = conductor; E = embolus; EB = embolar base; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm (equal for A, B, equal for C-E).

Figure 47. Clubiona suthepica, epigyne (A-D), male habitus (E, F) and female habitus (G, H) A intact, ventral view B cleared, ventral view C cleared, dorsal view D cleared, dorsal view E dorsal view F lateral view G dorsal view H ventral view. Abbreviations: A = atrium; AAM = atrial anterior margin; BS = bursa; CD = copulatory duct; CO = copulatory opening; SB = spermathecal base; SH = spermathecal head; SP = spermatheca. Scale bars: 0.1 mm (equal for A-D); 1 mm (equal for E, F, equal for G, H).

Figure 58. Clubiona spp. of the C. filicata group, male palp, ventral view A C. reichlini B C. filicata C C. banna sp. nov., holotype. Abbreviations: C = conductor; E = embolus; EB = embolar base; TA = tegular apophysis; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 59. Clubiona spp. of the C. filicata group, male palp, ventral view A C. melanosticta B C. zhanggureni C C. circulata D C. suthepica. Abbreviations: C = conductor; E = embolus; EB = embolar base; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 60. Clubiona spp. of the C. filicata group, male palp, ventral view A C. grucollaris B C. lala C C. abnormis D C. yueya. Abbreviations: C = conductor; E = embolus; EB = embolar base; TA = tegular apophysis; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 68. Clubiona spp. of the C. filicata group, male palp, retrolateral view A C. reichlini B C. filicata C C. banna sp. nov., holotype. Abbreviations: C = conductor; E = embolus; TA = tegular apophysis; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 69. Clubiona spp. of the C. filicata group, male palp, retrolateral view A C. melanosticta B C. zhanggureni C C. circulata D C. suthepica. Abbreviations: C = conductor; E = embolus; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 70. Clubiona spp. of the C. filicata group, male palp, retrolateral view A C. grucollaris B C. lala C C. abnormis D C. yueya. Abbreviations: C = conductor; E = embolus; TA = tegular apophysis; RTA = retrolateral tibial apophysis. Scale bars: 0.1 mm.

Figure 79. Clubiona spp. of the C. filicata group, epigyne, intact, ventral view A C. circulata B C. reichlini C C. grucollaris D C. lala E C. suthepica F C. yueya. Abbreviations: A = atrium; AAM = atrial anterior margin; APM = atrial posterior margin; CO = copulatory opening. Scale bars: 0.1 mm.

Figure 87. Clubiona spp. of the C. filicata group, epigyne, cleared, ventral view A C. circulata B C. reichlini C C. grucollaris D C. lala E C. suthepica F C. yueya. Abbreviations: A = atrium; AAM = atrial anterior margin; APM = atrial posterior margin; CO = copulatory opening. Scale bars: 0.1 mm.

Figure 95. Clubiona spp. of the C. filicata group, vulva, cleared, dorsal view A C. circulata B C. reichlini C C. grucollaris D C. lala E C. suthepica F C. yueya. Abbreviations: BS = bursa; CD = copulatory duct; FD = fertilisation duct; SB = spermathecal base; SH = spermathecal head; SP = spermatheca; SS = spermathecal stalk. Scale bars: 0.1 mm.