Ordgarius liyuanba Lin & Li, 2022

Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, Zoological Systematics 47 (3), pp. 198-270 : 204

Ordgarius liyuanba Lin & Li , sp. nov. ( Figs 3 , 5C–D )

Diagnosis. The new species resembles O. sexspinosus (Thorell, 1894) but can be distinguished from it by the straight anterior edge of the scape (vs. curved in O. sexspinosus ), the width of the hood is much wider than the length (vs. the length much longer than the width in O. sexspinosus ) and the abdomen with a pair of yellow humps dorsally.

Description. Female (holotype, Figs 5C–D ). Total length 8.88. Carapace 2.61 long, 2.62 wide. Abdomen 6.02 long, 6.46 wide. Carapace pear shaped, brown, with pale setae and black pattern, middle with two horns. Chelicerae brown, 3 promarginal teeth, 2 denticles at middle and 2 retromarginal teeth. Endites and labium brown at base, pale at tip, endites almost square, labium triangular. Sternum heart shaped, brown. Eye sizes and interdistances: AME 0.22, ALE 0.19, PME 0.22, PLE 0.15, AME–AME 0.41, AME–ALE 0.68, PME–PME 0.33, PME–PLE 0.73. Legs white with brown and black pattern. Leg measurements: I 9.44 (2.86, 3.40, 2.49, 0.69), II 9.29 (3.02, 3.18, 2.36, 0.73), III 5.04 (1.77, 1.60, 1.09, 0.58), IV 6.22 (1.90, 2.51, 1.31, 0.50). Abdomen brown, with white setae and pale white reticulated pattern. Spinnerets yellowbrown.

Epigyne ( Fig. 3 ) length and width nearly equal, with rimmed scape and hood; copulatory opening concave, located at posteriorly, close to base of scape; copulatory duct short and strong; spermathecae large, about 3 times longer than copulatory duct, oval, separated.

Male. Unknown.

Material examined. Holotype ♀ (IZCAS-Ar43245), China: Hainan, Qionghai City, Dalu Township, Donghong Farm , Ershierdui , 4 March 2021, M. Yi leg.

Distribution. Known only from the type locality.

Etymology. The species name is derived from Yuanba Li, an ancient Chinese warrior; noun (name) in apposition.

Figures

Figure 3. Ordgarius liyuanba Lin & Li, sp. nov., holotype female. A. Epigyne, ventral view; B. Vulva, dorsal view. Abbreviations: CD—copulatory duct; CO—copulatory opening; FD—fertilization duct; H—hood; S—spermatheca; Sc—scape. Scale bars=0.1mm.

Figure 5. Habitus of Ordgarius species, dorsal view (A, C) and lateral view (B, D). A–B. O. bo Lin & Li, sp. nov.; C–D. O. liyuanba Lin & Li, sp. nov. Scale bars=1.0mm.