Oxyopes fujianicus Song & Zhu, 1993

Lo, Ying-Yuan, Cheng, Ren-Chung & Lin, Chung-Ping, 2021, Species delimitation and taxonomic revision of Oxyopes (Araneae: Oxyopidae) of Taiwan, with description of two new species, Zootaxa 4927 (1), pp. 58-86 : 66-67

Oxyopes fujianicus Song & Zhu, 1993

Figs 3 , 11a

Oxyopes fujianicus Song & Zhu , in Song et al., 1993: 875, fig. 43 (holotype: 1 male, Mt. longqi, Fujian, IZCAS, not examined); Song, et al. 1999: 399, figs 235E, 236D; Tang & Li 2012: 29, figs 27–28.

Oxyopes bianatinus Xie & Kim, 1996: 33 , figs 1–5; Song et al. 1999: 399, figs 233I–J, 235A; Yin et al. 2012: 907, fig. 457.

Material examined. All specimens were collected from Taiwan.

1 male (TESRI Ar 1357), 22 Jul. 2015, Ying-Yuan Lo leg., Jiuliaoxi Ecological Park , Yilan County (24°40′25.9′′N, 121°35′54.3′′E; 185 m elevation) ; 6 females (TESRI C04006–C04007, C04013, C04016, C04034–C04035) and 3 males (C04009, C04012, C04031), 06 Sep. 2015, Yi-Da Lai leg., Duona Forest Road, Kaohsiung City (22°53′16.9′′N, 120°44′16.5′′E; 1050 m elevation) ; 1 female (TESRI Ar 2751), 28 Oct. 2017, Kuang-Ping Yu leg., Fenghuang Tea Garden , Nantou County (23°43′43.3′′N, 120°47′16.9′′E; 860 m elevation)

Diagnosis. Oxyopes fujianicus is similar to O.lineatipes (L. Koch, 1847) in genital morphology. However, it can be distinguished from the latter species by the following characters: (1) the male palp with four separate and differently shaped retrolateral apophyses (arranged closely, petal-like in O. lineatipes ); (2) the copulatory duct twisted into “S” shape (“C” shape in O. lineatipes ).

Description. Female (TESEI Ar1357). Total length 9.9; carapace length 3.3, width 2.5; abdomen length 6.6, width 2.3. Carapace yellowish-green, pear shaped, with two reddish-orange median lines from PME extended to posterior margin, two orange lines on each side. Fovea longitudinal. Clypeus high, with two black stripes from AME margin to front of each chelicera. Eye diameters and inter-distances: AME 0.12, ALE 0.26, PME 0.24, PLE 0.24, eye size ALE> PME = PLE> AME; MOA-L 0.90, MOA-AW 0.40, MOA-PW 0.70; AME-I 0.16, PME-I 0.24, AML-I 0.08, PML-I 0.35; clypeus height 0.74. Chelicerae downward with two promarginal teeth, first larger than second, one retromarginal tooth. Endite and labium longer than wide. Sternum yellowish with several setae. Proximal margins of coxa usually black. Abdomen fusiform, covered with scale-like patches. Dorsum cream yellow with three conspicuous reddish-orange, longitudinal stripes: central one is cardiac mark and others on each side (usually mottled) with a pair of black flecks at two-thirds along the stripe. Abdomen with irregularly meshed, lateral black band. In ventral view, broad dark longitudinal band extending from epigastric furrow to spinnerets. Legs clothed with many conspicuous long spines, with distinct black stripe on ventral femur I–III and dorsal tibia I–III. Three claws. Pedipalps bear apical claw. Measurements of pedipalps and legs: palp 3.7 (1.1, 0.5, 0.8, 1.3), leg I 18.3 (5.2, 1.1, 5.1, 5.3, 1.6), leg II 15.6 (4.5, 1.1, 4.0, 4.6, 1.4), leg III 10.8 (3.1, 0.8, 2.8, 3.2, 0.9), leg IV 12.3 (3.6, 0.8, 3.0, 3.9, 1.0). Leg formula: I> II> IV> III. Epigyne sclerotized, prominent on posterior edge to form semi-ring shape. Copulatory ducts twisted into “S” shape, spermathecae rounded, fertilization ducts slender and elongate.

Male (TESEI C04009). Body shape and coloration similar to female, but markings more variegated and abdomen thinner. Total length 6.9; carapace length 3.0, width 2.5; abdomen length 3.9, width 1.5. Eye diameters and interdistances: AME 0.12, ALE 0.26, PME 0.22, PLE 0.22, eye sizes ALE> PME = PLE> AME; MOA-L 0.96, MOA-AW 0.38, MOA-PW 0.64; AME-I 0.18, PME-I 0.24, AML-I 0.06, PML-I 0.26; clypeus height 0.50. Measurements of pedipalps and legs: pedipalp 3.8 (1.3, 0.4, 0.5, 1.6), leg I 18.0 (4.7, 1.1, 4.9, 5.4, 1.9), leg II 15.9 (4.2, 1.1, 4.3, 4.7, 1.6), leg III 13.2 (3.7, 1.0, 3.3, 4.0, 1.2), leg IV 15.1 (4.3, 1.0, 3.6, 4.8, 1.4). Leg formula: I> II IV> III. Palp tibia with a retrolateral depression and four separate and differently shaped apophyses: sharp-shaped apophysis on anterior margin, ridge-shaped one on ventral side, and two blunt, digit-shaped ones on posterior margin ( Fig. 3d ).

Size Variation. Three female and two male specimens were measured to quantify the morphological variations. Values are mean ± SD of females (with the male in parentheses). Total length 9.4 ± 0.4 (7.3 ± 0.5); cephalothorax length 3.1 ± 0.2 (3.1 ± 0.1), width 2.4 ± 0.1 (2.5 ± 0.0); abdomen length 6.4 ± 0.3 (4.2 ± 0.4), width 2.4 ± 0.2 (1.6 ± 0.1). Diameters of AME 0.11 ± 0.01 (0.12 ± 0.00), ALE 0.26 ± 0.00 (0.26 ± 0.00), PME 0.23 ± 0.01 (0.21 ± 0.01), PLE 0.23 ± 0.01 (0.21 ± 0.01). MOA-L 0.95 ± 0.05 (0.96 ± 0.00), MOA-AW 0.39 ± 0.01 (0.37 ± 0.01), MOA-PW 0.68 ± 0.02 (0.64 ± 0.00); AM-I 0.17 ± 0.03 (0.16 ± 0.03), PM-I 0.25 ± 0.01 (0.25 ± 0.01), AML-I 0.09 ± 0.01 (0.08 ± 0.03), PML-I 0.32 ± 0.03 (0.26 ± 0.00). Clypeus height 0.66 ± 0.09 (0.53 ± 0.04). Pedipalp 3.7 ± 0.1 (3.8 ± 0.0), leg I 17.4 ± 1.3 (18.1 ± 0.1), leg II 15.5 ± 0.2 (16.0 ± 0.1), leg III 12.0 ± 1.1 (13.3 ± 0.1), leg IV 13.9 ± 1.4 (15.2 ± 0.1).

Distribution. China (Song & Zhu, in Song et al. 1993) and Taiwan (newly recorded).

Remark. Although we did not examine the type specimen, the original description and illustrations are unequivocal to confirm that specimens from Taiwan belong to O. fujianicus .

Figures

FIGURE 3. Oxyopes fujianicus Song & Zhu, 1993. (a–b) Epigyne (TESRI Ar1357): (a) ventral; (b) dorsal. (c–e) Palp (TESRI C04009): (c) prolateral; (d) ventral; (e) retrolateral. Scale bars: 0.2 mm.

FIGURE 11. Habitus of Oxyopes jujianicus Song & Zhu, 1993 and Oxyopes hasta sp. nov. (a) O. fujianicus, female; (b) O. hasta, female; (c) O. hasta, female (TESRI Ar2824); (d) O. hasta, male (TESRI Ar2822). Scale bars (c–d): 2 mm.