Taxonomic notes on some spider species (Arachnida: Araneae) from China and Vietnam Author Lin, Yejie Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Li, Shuqiang Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Pham, Dinh-Sac Vietnam National Museum of Nature (VNMN), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam Corresponding author, E-mail: phamdinhsac @ vnmn. vast. vn text Zoological Systematics 2023 48 1 1 99 http://dx.doi.org/10.5281/zenodo.8283969 journal article 10.11865/zs.2023101 2095-6827 10941307 7A57D6D4-279E-4A4F-9D9B-2ADF461B5E28 Asceua shuangreni Lin & Li , sp. nov. ( Figs 72–73 , 84A–B ) Etymology. The species is named after Mr. Shuangren Liu; noun (name) in genitive case. Diagnosis. The male is similar to A. maculosa Logunov, 2010 by the wide and strongly membranous apophysis and conductor. However, the new species can be distinguished from A. maculosa by the bifurcated tip of the retrolateral tibial apophysis ( vs. not bifurcated in A. maculosa ). The female can be distinguished from all congeners by the V-shaped rim of the copulatory openings. Figure 69. Habitus, dorsal view, male (A, C, E, G, I) and female (B, D, F, H). A–B. Borboropactus nanda Lin & Li , sp. nov. ; C–D. Cozyptila haocongi Lin & Li , sp. nov. ; E–F. Lysiteles huyilinae Lin & Li , sp. nov. ; G–H. Massuria daizong Lin & Li , sp. nov. ; I. Zametopina wanliae Lin & Li , sp. nov. Scale bars: A–B, H = 1.0mm; C–G, I =0.5 mm. Figure 70. Utivarachna yumaoi Lin & Li , sp. nov. , holotype male. A. Left palp, ventral view; B. Same, retrolateral view. Abbreviations: E—embolus; SD—sperm duct; RTA—retrolateral tibial apophysis. Scale bars =0.1 mm. Description. Male ( holotype ). Total length 2.09; carapace 1.07 long, 0.80 wide, opisthosoma 1.02 long, 0.73 wide. Eye sizes and interdistances: AME 0.06, ALE 0.06, PME 0.07, PLE 0.08, AME–AME 0.03, AME–ALE 0.03, PME–PME 0.05, PME–PLE 0.08, AME–PME 0.12, ALE–PLE 0.07. Leg measurements: I 2.81 (0.75, 0.93, 0.67, 0.46), II 2.18 (0.61, 0.66, 0.52, 0.39), III 2.38 (0.65, 0.70, 0.63, 0.40), IV 3.33 (0.85, 0.98, 0.98, 0.52). Coloration ( Fig. 84A ). Carapace brown. Chelicerae, endites and labium brown. Sternum yellow-brown. Legs paler yellow to yellow-brown with black setae. Opisthosoma oval, dark brown, dorsum with two pairs of pale oblong spots, second one largest, followed by two pale transverse bands, first one largest. Spinnerets yellow-brown. Palp ( Fig. 72 ). Patella almost as long as tibia. Tibia with two apophyses; ventral tibial apophysis bifurcate, all rami thumb-shaped; retrolateral tibial apophysis bifurcate, ventral ramus longer and digitiform, dorsal ramus shorter and dentiform. Cymbium with large retrolateral bend, larger than bulb length, bulb almost 1.5 times longer than wide. Tegulum almost round. Tegular apophysis with two lateral processes. Conductor membranous, bent, originating dorsally on bulb, with slightly widened tip. Embolus slender and whiplike, distal portion crosses over conductor in retrolateral view. Base of embolus large, with large membranous prolateral part, arising at clock 5:00 position. Female (IZCAS-Ar44038). Total length 2.59; carapace 1.12 long, 0.91 wide, opisthosoma 1.38 long, 0.89 wide. Eye sizes and interdistances: AME 0.05, ALE 0.06, PME 0.07, PLE 0.08, AME–AME 0.02, AME–ALE 0.04, PME–PME 0.07, PME–PLE 0.10, AME–PME 0.14, ALE–PLE 0.09. Leg measurements: I 2.83 (0.78, 0.89, 0.65, 0.51), II 2.39 (0.67, 0.79, 0.52, 0.41), III 2.45 (0.67, 0.76, 0.62, 0.40), IV 3.33 (0.89, 0.94, 0.91, 0.59). Coloration ( Fig. 84B ). Similar to that of male except paler. Epigyne ( Fig. 73 ). Epigynal plate about 1.6 times wider than long. Copulatory openings located on anterior portion of epigyne, with V-shaped rim. Copulatory ducts intertwined. Spermathecae tubular, almost as wide as copulatory ducts. Fertilization ducts directed at clock 2:00 position from spermathecae. Figure 71. Utivarachna yumaoi Lin & Li , sp. nov. , holotype male, habitus. A. Dorsal view; B. Ventral view; C. Lateral view. Scale bars = 1.0 mm. Material examined. Holotype ♂ (IZCAS-Ar44018), Vietnam : Ninh Binh , Cuc Phuong NP , Natural Forest , Sieving ( 20.3428°N , 105.6004°E , elev. 408 m ), 8 October 2007 , Dinh-Sac Pham leg. Paratypes . 10♂ 10♀ (IZCAS-Ar44019– Ar44038), same data as holotype . Distribution. Known only from the type locality.