Opopaea wenshan Tong & Zhang, 2024

Zhou, Yang, Bian, Dongju, Yang, Zizhong, Zhang, Zhisheng, Tong, Yanfeng & Li, Shuqiang, 2024, Four new species and one newly-recorded species of the genus Opopaea Simon, 1892 (Araneae, Oonopidae) from southern China, with a key to Chinese species, Zoosystematics and Evolution 100 (2), pp. 325-347 : 325

Opopaea wenshan Tong & Zhang sp. nov.

Figs 10 , 11 , 12 , 16E, F , 17

Type material.

Holotype: ♂ (SYNU-568), China, Yunnan, Wenshan Zhuang and Miao Autonomous Prefecture, Funing County, Central National Level Ecological Forest, Z. Li & G. Zhou leg. Paratypes: 4♀ (SYNU-565-567, 569), same data as holotype.

Etymology.

The specific name refers to the type locality and is a noun in apposition.

Diagnosis.

This new species is similar to Opopaea rigidula Tong & Li, 2015 in the ear-shaped tip of palpal bulb, but can be distinguished by the triangular protrusion of palpal bulb (Fig. 12C, I ) vs. lacking the protrusion ( Tong and Li 2015: figs 10A-D), the large prolateral ridge of male palp (Fig. 12A, I ) vs. very small ( Tong and Li 2015: fig. 10C) and the arch-shaped sclerite of endogyne (Figs 11H , 16E, F ) vs. lacking the arch-shaped sclerite ( Tong and Li 2015: fig. 12E, F).

Description.

Male (holotype). Measurements: TL: 1.83; CL: 0.83; CW: 0.68; AL: 0.99; AW: 0.91; ALE: 0.10; PME: 0.08; PLE: 0.07; EGW: 0.24; ALE-ALE: 0.05; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0; CBL: 0.29; CBW: 0.10; PTL: 0.44; FI: 0.21; FML: 0.11. Colouration: legs yellow, carapace and abdomen scuta yellow-brown, abdominal interscutal areas creamy-white, pedipalps reddish-brown. Habitus as in Fig. 10A, C, E . Carapace (Fig. 10A, E ): oval in dorsal view; sides with longitudinal streaks; median area smooth with rows of setae at lateral edges. Eyes (Fig. 10A, F ): ALE largest, PLE smallest; posterior eye row straight viewed from above, procurved from front; ALE separated by their radius, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius. Clypeus height about 1.5 times ALE diameter (Fig. 10F ). Sternum (Fig. 10C ) longer than wide, fused to carapace; surface smooth; radial furrows present between coxae I-II, II-III and III-IV, with rows of small pits; endites anteriorly strongly sclerotised. Abdomen: booklung covers small, ovoid, without setae. Pedicel tube short, ribbed, with small, dorsolateral triangular extensions, scuto-pedicel region lower than pedicel diameter, with arched scutal ridges and curved upper scutal ridge (Fig. 10G ). Palp (Fig. 12A-K ): femur very small, about 1/4 length of patella and submedially attached to patella; patella strongly enlarged, elongate oval; tibia small, rounded; cymbiobulbus shorter than the patella; bulb ventrally slightly bulging, dorsally with one triangular protrusion, tip ear-shaped, with two largely-folded ridges.

Female. As in male, except as noted. Measurements: TL: 2.00; CL: 0.81; CW: 0.65; AL: 1.19; AW: 0.87; ALE: 0.07; PME: 0.06; PLE: 0.05; EGW: 0.22; ALE-ALE: 0.05; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0. Habitus as in Fig. 11A, C, E . Copulatory organ (Figs 11H , 16E, F ): posterior margin of epigastric scutal ridge smooth; dorsally with nail-like process (na) connected to paddle-like sclerite (pls); with an arch shaped sclerite (ass).

Distribution.

Known only from the type locality.

Figures

Figure 10. Opopaea wenshan sp. nov., male. A, C, E, F Prosoma, dorsal, ventral, lateral and anterior views; B Labium and endites, ventral view; D, G Abdomen, ventral and anterior views. Abbreviations: boc = booklung covers; dte = dorsolateral, triangular extensions; sr = scutal ridge; usr = upper scutal ridge. Scale bars: 0.4 mm.

Figure 11. Opopaea wenshan sp. nov., female. A, C, E Habitus, dorsal, ventral and lateral views; B, D, F, G Prosoma, dorsal, ventral, lateral and anterior views; H Abdomen, ventral view. Abbreviation: boc = booklung covers. Scale bars: 0.4 mm.

Figure 12. Opopaea wenshan sp. nov., male left palp. A, I Prolateral view; B, F, H Distal part of cymbiobulbus, prolateral, retrolateral and dorsal views; C, E Cymbiobulbus, prolateral and retrolateral views; D, K Retrolateral view; G, J Dorsal view. Abbreviations: prr = prolateral ridge; rer = retrolateral ridge; trp = triangular protrusion. Scale bars: 0.1 mm (A, C-E, G, I-K); 0.05 mm (B, F, H).

Figure 16. Female copulatory organ. A, B Opopaea mangun sp. nov.; C, D Opopaea taibao sp. nov.; E, F Opopaea wenshan sp. nov.; G, H Opopaea yuhuang sp. nov.; A, C, E, G Ventral view; B, D, F, H Dorsal view. Abbreviations: ap = apodeme; asr = anterior scutal ridge; ass = arch-shaped sclerite; ga = globular appendix; na = nail-like process; nle = needle-like extension; pd = postgynal depression; pls = paddle-like sclerite; psr = posterior scutal ridge. Scale bars: 0.2 mm.

Figure 17. Distribution records of four new species and one newly-recorded species from southern China. 1. Opopaea foveolata Roewer, 1963; 2. Opopaea mangun sp. nov.; 3. Opopaea taibao sp. nov.; 4. Opopaea wenshan sp. nov.; 5. Opopaea yuhuang sp. nov.