Opopaea mangun Tong & Li, 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 mangun Tong & Li sp. nov.

Figs 4 , 5 , 6 , 16A, B , 17

Type material.

Holotype: ♂ (SYNU-541), China, Yunnan, Menghai County, Mangun Stockaded Village (22°02'12"N, 100°23'28"E, 1179 m elev.), 20 March 2016, S. Li leg. Paratypes: 2♀ (SYNU-542-543), 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 macula Tong & Li, 2015 in the large booklung covers and morphology of the scuto-pedical region, but can be distinguished by the acute tip of bulbus (Fig. 6I ) vs. round tip ( Tong and Li 2015: fig. 7A) and the semicircular-shaped postgynal depression (Figs 5H , 16A ) vs. very narrow ( Tong and Li 2015: fig. 7D).

Description.

Male (holotype). Measurements: TL: 1.64; CL: 0.69; CW: 0.53; AL: 0.89; AW: 0.53; ALE: 0.07; PME: 0.06; PLE: 0.05; EGW: 0.18; ALE-ALE: 0.03; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0.01; CBL: 0.25; CBW: 0.08; PTL: 0.26; FI: 0.09; FML: 0.10. Colouration: yellow, abdominal interscutal areas creamy-white, booklung covers brown, pedipalps reddish-brown. Habitus as in Fig. 4A, C, E . Carapace (Fig. 4B, F ): oval in dorsal view; sides with longitudinal streaks; median area smooth with rows of setae at lateral edges. Eyes (Fig. 4B, G ): ALE largest, PLE smallest; posterior eye row straight viewed from above, procurved from front; ALE separated by less than 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 1.0 times ALE diameter (Fig. 4G ). Sternum (Fig. 4D ) 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. Abdomen: booklung covers large, ovoid, without setae. Pedicel tube short, ribbed, with small, dorsolateral triangular extensions, scuto-pedicel region lower than pedicel diameter, with straight scutal ridges (Fig. 4H ). Palp (Fig. 6A-K ): femur slightly shorter than half length of patella and submedially attached to patella; patella strongly enlarged, elongate oval; tibia small, rounded; cymbiobulbus as long as the patella; bulb ventrally straight, tip acute, ventral with prolateral folded ridges (prr).

Female. As in male, except as noted. Measurements: TL: 1.84; CL: 0.72; CW: 0.55; AL: 1.10; AW: 0.72; ALE: 0.06; PME: 0.05; PLE: 0.05; EGW: 0.18; ALE-ALE: 0.03; ALE-PLE: 0.01; PME-PME: 0; PLE-PME: 0.01. Habitus as in Fig. 5A, C, E . Copulatory organ (Figs 5H , 16A, B ): posterior margin of epigastric scutal ridge (asr) smooth, postgynal depression (pd) semicircular-shaped; dorsally with nail-like process (na) connected to paddle-like sclerite (pls) bearing thin, straight arms.

Distribution.

Known only from the type locality.

Figures

Figure 4. Opopaea mangun sp. nov., male. A, C, E Habitus, dorsal, ventral and lateral views; B, D, F, G Prosoma, dorsal, ventral, lateral and anterior views; H Abdomen, anterior view. Abbreviations: boc = booklung covers; dte = dorsolateral, triangular extensions; sr = scutal ridge. Scale bars: 0.4 mm.

Figure 5. Opopaea mangun 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. Abbreviations: boc = booklung covers; pd = postgynal depression. Scale bars: 0.4 mm.

Figure 6. Opopaea mangun sp. nov., male left palp. A, I Prolateral view; B, E Cymbiobulbus, prolateral and retrolateral views; C, F, H Distal part of cymbiobulbus, prolateral, retrolateral and dorsal views; D, K Retrolateral view; G, J Dorsal view. Abbreviation: prr = prolateral ridge. Scale bars: 0.1 mm (A, B, D, E, G, I-K); 0.05 mm (C, 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.