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Five new species of the spider family Araneidae Clerck, 1757 from Vietnam are described: Araneus eugeneisp. nov. (♂♀), A. ethanisp. nov. (♀), A. liamisp. nov. (♂♀), Hypsosinga ryanisp. nov. (♂♀), and H. zionisp. nov. (♀). Diagnostic photographs of the habitus and copulatory organs are provided. Types of the new species are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.

Four species of the genus Ischnothyreus Simon, 1893 from Tibet, China are recognised, including three new species, I. caoqiisp. nov. (female), I. metoksp. nov. (female), and I. pomesp. nov. (male and female). Males of Ischnothyreus linzhiensis Hu, 2001 are discovered for the first time since its description. Descriptions, diagnoses, and photographs of the four species are provided.

Eleven new species of Araneus Clerck, 1757 from Xishuangbanna, Yunnan, China are described: Araneus arcuatussp. nov. (♂♀), A. bidentatussp. nov. (♂♀), A. bidentatoidessp. nov. (♂♀), A. complanatussp. nov. (♂♀), A. corrugissp. nov. (♀), A. cucullatussp. nov. (♀), A. minisculussp. nov. (♂), A. ovoideussp. nov. (♀), A. pseudodigitatussp. nov. (♂♀), A. semiorbiculatussp. nov. (♀), and A. tetracanthussp. nov. (♂♀). Diagnostic photographs of the habitus and copulatory organs are provided.

Three cave-dwelling spider species belonging to the family Symphytognathidae Hickman, 1931, i.e., Anapistula sanjiaosp. nov. (♂♀), A. walayakusp. nov. (♂♀), and A. panensis Lin, Tao & Li, 2013 (♂♀), are reported from southwest China. DNA sequences and detailed illustrations of the habitus, male palps and epigynes are provided, and their distributions are mapped. Their phylogenetic position within symphytognathids and relationships were tested and assessed using previously published phylogenetic analyses on symphytognathoids. The results showed that they form a clade with A. choojaiae Rivera-Quiroz, Petcharad & Miller, 2021 from Thailand.

A new genus of the subfamily Coelotinae F. O. Pickard-Cambridge, 1893, Yunguiriusgen. nov. is described, comprising two new species and three species previously described in Draconarius Ovtchinnikov, 1999, all from southwest China: Y. duogesp. nov. (♀), Y. xiangdingsp. nov. (♀), Y. ornatus (Wang, Yin, Peng & Xie, 1990) comb. nov. (♂♀) (the type species of Yunguiriusgen. nov.), Y. subterebratus (Zhang, Zhu & Wang, 2017) comb. nov. (♀), and Y. terebratus (Peng & Wang, 1997) comb. nov. (♂♀). Molecular analyses support Yunguiriusgen. nov. as a monophyletic group, with the Sinodraconarius clade as its sister group: Yunguiriusgen. nov. + (Hengconarius + (Nuconarius + Sinodraconarius)).

Three new species of Vappolotes Zhao & Li, 2019 (Araneae: Agelenidae) are described from Hunan and Sichuan provinces, China: V. longshan sp. n. (♀♂), V. tianjiayu sp. n. (♀), and V. hei sp. n. (♀♂). The diagnostic characters of this genus are amended based on the newly obtained data. Photographs of habitus and copulatory organs, as well as their distributions, are provided for all new Vappolotes species.

The spider genus Asceua Thorell, 1887 contains 34 species, almost entirely limited to Indochina, India, Sri Lanka and China, with a regional distribution. Eleven species of Asceua are currently only known from China, five of them are described only from one sex. Two new spider species of the genus Asceua are reported from China, A. haocongi sp. n. (♂♀, Hainan) and A. zijin sp. n. (♂♀, Jiangsu). Photos and a morphological description of the new species are provided.

Liocranid spiders from the Xishuangbanna Tropical Botanical Garden in Yunnan, China are studied. Two new species of Oedignatha Thorell, 1881, O. dian Lu & Li, sp. nov. (♂♀) and O. menglun Lu & Li, sp. nov. (♂♀), are described, and the female of Jacaena menglaensis Mu & Zhang, 2020 is described for the first time. The specimens studied are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.

Four new species of the genus Phrynarachne Thorell, 1869 from China are described: P. dreepy Lin & S. Li, sp. nov. (♂♀), P. xuxiake Lin & S. Li, sp. nov. (♀), P. yunhui Lin & S. Li, sp. nov. (♀), and P. zhengzhongi Lin & S. Li, sp. nov. (♀). The unknown sexes of P. brevis Tang & S. Li, 2010 (♂), P. huangshanensisLi et al., 1985 (♀), P. lancea Tang & S. Li, 2010 (♂), and P. mammillata Song, 1990 (♀) are described for the first time. Phrynarachne sinensis Peng, Yin & Kim is treated as a nomen dubium.

Fourteen symphytognathid species belonging to three genera are examined, including the descriptions of eight new species and two new genera from China, Vietnam, Thailand and Myanmar: Patu Marples, 1951: P. catba S. Li & Lin, sp. nov. (♂, Vietnam), P. dakou S. Li & Lin, sp. nov. (♂♀, China), P. damtao S. Li & Lin, sp. nov. (♂, Vietnam), P. jiangzhou S. Li & Lin, sp. nov. (♀, China), P. jidanweishi Miller, Griswold & Yin, 2009 (♂♀, China), P. nagarat S. Li & Lin, sp. nov. (♂♀, Thailand), P. nigeri Lin & S. Li, 2009 (♀, China), P. putao S. Li & Lin, sp. nov. (♀, Myanmar), P. qiqi Miller, Griswold & Yin, 2009 (♀, China) and P. xiaoxiao Miller, Griswold & Yin, 2009 (♂♀, China); Kirinua S. Li & Lin, gen. nov.: K. maguai S. Li & Lin, sp. nov. (♂♀, China) and K. yangshuo S. Li & Lin, sp. nov. (♂♀, China); Swilda S. Li & Lin, gen. nov.: S. longtou (Miller, Griswold & Yin, 2009), comb. nov. (♂♀, China) is transferred from Crassignatha Wunderlich, 1995 and S. spinathoraxi (Lin & S. Li, 2009), comb. nov. (♂♀, China) is transferred from Patu. Diagnoses, descriptions and illustrations are provided for new taxa, as well as a distribution map. The males of P. xiaoxiao and S. longtou are described for the first time. Type specimens of P. jidanweishi, P. nigeri, P. qiqi, P. xiaoxiao, S. longtou and S. spinathoraxi are re-examined and photographed. All Asian Patu species are revised and two species, P. kishidai Shinkai, 2009 and P. bispina Lin, Pham & S. Li, 2009, are transferred to Crassignatha and proposed as new combinations: Crassignatha kishidaicomb. nov. and C. bispinacomb. nov. In addition, DNA barcodes and genetic distances of ten species treated in this paper were obtained to confirm identification.

The spider family Ctenidae Keyserling, 1877 has a worldwide distribution with 584 species belonging to 49 genera. Amongst these, 141 species are from Asia, including 130 species assigned to Cteninae Keyserling, 1877. Nine new species belonging to three genera of Cteninae are reported from Asia: Amauropelma krabi sp. n. (female; Krabi, Thailand), Am. phangnga sp. n. (male; Phang Nga, Thailand), Am. saraburi sp. n. (male and female; Saraburi, Thailand); Anahita medog sp. n. (male and female; Tibet, China); Bowie ninhbinh sp. n. (male; Ninh Binh, Vietnam) and B. vinhphuc sp. n. (male and female; Vinh Phuc, Vietnam) from the robustus-species group; B. borneo sp. n. (male; Sabah, Malaysia) from the chinagirl-species group; B. engkilili sp. n. (female; Engkilili, Malaysia); B. sabah sp. n. (male and female; Sabah, Malaysia) from the scarymonsters-species group. The male of An. popa Jäger & Minn, 2015 and the female of B. fascination Jäger, 2022 (robustus-species group) are described for the first time. B. fascination Jäger, 2022 is reported from China for the first time. In addition, the DNA barcodes of all the species in this study were obtained, except for B. vinhphuc sp. n.

Eresidae C. L. Koch, 1845 contains nine genera and 102 species, of which 24 species belong to Eresus Walckenaer, 1805. Four species of the family are known from China: E. granosus Simon, 1895 (Beijing), E. kollari Rossi, 1846 (Hebei), E. lishizheni Lin, Marusik & Li, 2021 (Xinjiang) and Stegodyphus tibialis (O. Pickard-Cambridge, 1869) (Yunnan). Two new species of Eresus are described from Xinjiang, China: Eresus da Lin & Li sp. n. and E. yukuni Lin & Li sp. n. Photos and morphological descriptions of new species are given.

The theraphosid spider genus Chilobrachys Karsch, 1892 contains 30 species, almost entirely limited to Indochina, India, Sri Lanka and China. Six species of Chilobrachys are currently known from China: C. dominus Lin & Li, 2022 (Yunnan), C. guangxiensis (Yin & Tan, 2000) (Guangxi, Hainan), C. hubei Song & Zhao, 1988 (Hubei, Chongqing), C. jinchengi Lin & Li, 2022 (Tibet), C. liboensis Zhu & Zhang, 2008 (Guizhou, Guangxi) and C. lubricus Yu et al., 2021 (Yunnan). A new species, Chilobrachys qishuoi Lin & Li, sp. n., is described from Guangdong, China, on the basis of both sexes. This is the easternmost Chilobrachys species known. Photos and a morphological description of the new species are provided. Type materials are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.

Thirteen spider species belonging to the family Mysmenidae Petrunkevitch, 1928 are reported from Xishuangbanna Tropical Botanical Garden (XTBG), Menglun Township, Mengla County, Yunnan Province of China. One genus and five species are documented as new to science: Mengmena bannagen. nov. et. sp. nov. (♂♀), Mengmena yulinsp. nov. (♀), Mosu heguomusp. nov. (♂♀), Mysmena luosuosp. nov. (♂♀), and Mysmena daisp. nov. (♀). One species is proposed as a new combination: Mosu zhengi (Lin & Li, 2008) comb. nov. (♂♀, ex Mysmena Simon, 1894). The females of Microdipoena menglunensis (Lin & Li, 2008), Mysmena arcilonga Lin & Li, 2008, Mysmena furca Lin & Li, 2008, and Mysmena rostella Lin & Li, 2008 are described for the first time. Three known species are re-examined and photographed: Gaoligonga taeniata Lin & Li, 2014, Mysmena biangulata (Lin & Li, 2008), and Mysmena cornigera (Lin & Li, 2008). Morphological diagnoses and illustrations are provided for these thirteen mysmenid species.

The genus Ibana Benjamin, 2014 was established, based on the type species Ibana senagang Benjamin, 2014 from Borneo, Malaysia. No species of this genus has been recorded from China. A new species of Ibana is described and illustrated, representing the first record of the genus for China. Ibana gan sp. n. differs from its congener by the yellowishbrown longitudinal band on the abdomen and the round, contiguous spermathecae. The distribution of the new species in Jiangxi Province is mapped.

A new genus and eight new species of jumping spiders from Hainan Island, China are reported. Pengmarengogen. nov. is erected to accommodate the type species P. yangisp. nov. (♂♀). Further Pengmarengogen. nov. species including P. chelifer (Simon, 1990), comb. nov. (transferred from Philates Simon, 1900), P. elongata (Peng & Li, 2002), comb. nov. (transferred from Tauala Wanless, 1988), and two species transferred from Indomarengo Benjamin, 2004: P. yui (Wang & Li, 2020), comb. nov., and P. wengnan (Wang & Li, 2022), comb. nov. Another seven new jumping spider species are described from Hainan: Irura liaesp. nov. (♂), I. miisp. nov. (♂♀), Marengo ganaesp. nov. (♂♀), M. zhengisp. nov. (♂♀), Nungia tangisp. nov. (♂♀), Philates zhouisp. nov. (♂♀), and Toxeus hainansp. nov. (♂♀). The unknown female of the endemic species, Irura pengi Guo, Zhang & Zhu, 2011 is also described for the first time.

One new genus and eight new species from Xishuangbanna, China are described and diagnosed: Bocusoides zhaoigen. and sp. nov., Euochin miisp. nov. (♂♀), E. tangisp. nov. (♀), Eupoa logunovisp. nov. (♂♀), Indomarengo wengnansp. nov. (♀), Laufeia zhangaesp. nov. (♂♀), Simaetha huigangsp. nov. (♂♀), and Synagelides chenisp. nov. (♀). The unknown sexes of three endemic species, Chalcovietnamicus lii (Lei & Peng, 2010) comb. nov. (ex Chalcoscirtus Bertkau, 1880), Indomarengo yui Wang & Li, 2020, and Rhene triapophyses Peng, 1995 are described for the first time.

A new genus of Clubionidae Wagner, 1887, Femorbiona Yu & Li, gen. nov., is described, with Clubiona brachyptera Zhu & Chen, 2012 (♂♀; Hainan, China) as the type species. Three species are included in Femorbionagen. nov.: F. brachypteracomb. nov., F. phami Yu & Li, sp. nov. (♂♀; Hai Phong, Vietnam), and F. shenzhen Yu & Li, sp. nov. (♂♀; Guangdong, China).

Two new species of the genus Camptoscaphiella Caporiacco, 1934 are described from Yunnan, China, i.e., C. changxu Tong & Li, sp. nov. (♂♀) and C. linyejiei Tong & Li, sp. nov. (♂♀). Camptoscaphiella changxu Tong & Li, sp. nov. is characterized by the long, strongly-curved setae between male paturons, which is unknown in other oonopids and in any other spiders. Camptoscaphiella linyejiei Tong & Li, sp. nov. is the third blind species of this genus in the world. Morphological descriptions and photographic illustrations of the two new species are given.

Amauropelma Raven, Stumkat & Gray, 2001 currently contains 24 species. It is distributed in Australia, India, Indonesia, Laos and Malaysia. This genus has not been found in China. Ctenus Walckenaer, 1805 comprises 213 known species. This genus is distributed worldwide. Currently, only two species, Ctenus lishuqiang Jäger, 2012 and Ctenus yaeyamensis Yoshida, 1998 are known to occur in China. Three new species of ctenid spiders are described from Xishuangbanna Tropical Botanical Garden in Yunnan Province, China: Amauropelma yunnan sp. nov., Ctenus banna sp. nov. and Ctenus yulin sp. nov. Amauropelma and Ctenus robustus Thorell, 1897 are reported from China for the first time.

Troglomorphism is rare known in Mygalomorphae. Only three troglomorphic mygalomorphs have been recorded in China: Raveniola beelzebub Lin & Li, 2020, R. lamia Yu & Zhang, 2021 and Sinopesa gollum Lin & Li, 2021. A new troglobiontic species of the genus Raveniola is described from China: R. yangren sp. n. (female) from Hunan. Photos and morphological description of the new species are given.This new species has elongated appendages and degenerated eyes in order to adapt to the cave environment. It can be distinguished by the stubby, unbranched spermathecae from other Raveniola.

Species of the genus Eriovixia Archer, 1951 from Menglun Town, Xishuangbanna, Yunnan, China are reviewed, including seven new species: E. ganaesp. nov. (♂♀), E. liuhongisp. nov. (♂♀), E. tangisp. nov. (♂♀), E. wangchengisp. nov. (♂♀), E. yaoisp. nov. (♂♀), E. yinaesp. nov. (♂♀) and E. zhengisp. nov. (♂♀). The male of E. yunnanensis (Yin, Wang, Xie & Peng, 1990) is described for the first time. The previous description of E. yunnanensis from Tengchong, Yunnan by Mi et al. (2010) refers to E. pengisp. nov. (♂♀). Diagnostic photos of the habitus and copulatory organs of the new species and E. yunnanensis from Xishuangbanna are provided.

Thirty-five new species of the Pimoa Chamberlin & Ivie, 1943 are described from Pan-Himalaya: P. anning Zhang & Li, sp. nov. (♂♀), P. bomi Zhang & Li, sp. nov. (♂♀), P. cawarong Zhang & Li, sp. nov. (♀), P. daman Zhang & Li, sp. nov. (♀), P. danba Zhang & Li, sp. nov. (♀), P. deqen Zhang & Li, sp. nov. (♀), P. dongjiu Zhang & Li, sp. nov. (♂♀), P. guiqing Zhang & Li, sp. nov. (♀), P. gyaca Zhang & Li, sp. nov. (♀), P. gyara Zhang & Li, sp. nov. (♂♀), P. gyirong Zhang & Li, sp. nov. (♂♀), P. heishui Zhang & Li, sp. nov. (♂♀), P. jinchuan Zhang & Li, sp. nov. (♂♀), P. khaptad Zhang & Li, sp. nov. (♀), P. koshi Zhang & Li, sp. nov. (♀), P. lhatog Zhang & Li, sp. nov. (♀), P. mechi Zhang & Li, sp. nov. (♂♀), P. miandam Zhang & Li, sp. nov. (♂♀), P. miero Zhang & Li, sp. nov. (♂♀), P. mude Zhang & Li, sp. nov. (♀), P. muli Zhang & Li, sp. nov. (♂♀), P. naran Zhang & Li, sp. nov. (♀), P. ninglang Zhang & Li, sp. nov. (♀), P. nyalam Zhang & Li, sp. nov. (♂♀), P. phaplu Zhang & Li, sp. nov. (♂♀), P. putou Zhang & Li, sp. nov. (♀), P. rara Zhang & Li, sp. nov. (♀), P. sangri Zhang & Li, sp. nov. (♂♀), P. shigatse Zhang & Li, sp. nov. (♀), P. tengchong Zhang & Li, sp. nov. (♂♀), P. xiahe Zhang & Li, sp. nov. (♂♀), P. yejiei Zhang & Li, sp. nov. (♀), P. yele Zhang & Li, sp. nov. (♂♀), P. zayu Zhang & Li, sp. nov. (♂♀), P. zhigangi Zhang & Li, sp. nov. (♀). The DNA barcodes of the thirty-five new species are provided.

Three new species of the genusToxoniellaWarui & Jocqué, 2002 of the family Liocranidae Simon, 1897 are described from Kenya:T. tharakaOketch & Li,sp. nov.,T. waruiiOketch & Li,sp. nov., andT. nyeriOketch & Li,sp. nov.Types are deposited in the National Museums of Kenya (NMK), Nairobi, Kenya.

Five new species of the huntsman spider genus Sinopoda Jäger, 1999 are described: S. hongruii Wang & Li, sp. nov. (♂♀, forest in Anhui, China), S. jiangzhou Wang & Li, sp. nov. (♂♀, cave in Guangxi, China), S. saiyok Wang & Li, sp. nov. (♀, cave in Kanchanaburi, Thailand), S. yanjin Wang & Li, sp. nov. (♀, forest in Yunnan, China), and S. yanzi Wang & Li, sp. nov. (♂♀, cave in Hunan, China). A distribution map of the new species is provided.

Seven new species of the genus Ischnothyreus Simon, 1893 from the spider family Oonopidae Simon, 1890 are reported from Myanmar: I. hponkanrazi sp. nov. (♀), I. jianglangi sp. nov. (♀), I. meukyawwa sp. nov. (♂♀), I. putao sp. nov. (♀), I. qiuxing sp. nov. (♀), I. taunggyi sp. nov. (♂♀) and I. zhigangi sp. nov. (♂♀). Morphological descriptions and photographic illustrations of the new species are given. All types are preserved in the Institute of Zoology, Chinese Academy of Sciences (IZCAS).

Haplocosmia Schmidt & von Wirth, 1996 is a small genus distributed in the Himalayas that includes two species. This genus has not been found in China (Li et al. 2021, Yao et al. 2021, Zhao et al. 2022). A new species of the genus Haplocosmia is described from China: Haplocosmia sherwoodae sp. n. from Tibet. Photos and a morphological description of the new species are given. The type specimen of the new species is deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing (IZCAS).

Species of the spider family Telemidae Fage, 1913 from East and Southeast Asia are revised. Four new genera are erected:MekonglemaZhao & Li,gen. nov.with the type speciesMekonglema bailangZhao & Li,sp. nov.(♂♀, Yunnan, China),SiamlemaZhao & Li,gen. nov.with the type speciesSiamlema changhaiZhao & Li,sp. nov.(♂♀, southern Thailand),SundalemaZhao & Li,gen. nov.with the type speciesSundalema bonjolZhao & Li,sp. nov.(♂♀, Sumatra), andZhuanlemaZhao & Li,gen. nov.with the type speciesZhuanlema peteriZhao & Li,sp. nov.(♂♀, northern Laos). Eight additional new species are described:Mekonglema kaoraoZhao & Li,sp. nov.(♂♀, northern Laos),M. walayakuZhao & Li,sp. nov.(♂♀, Yunnan, China),M. yanZhao & Li,sp. nov.(♂♀, Yunnan, China),Pinelema daguaiwanZhao & Li,sp. nov.(♂♀, Guangxi, China),P. shibaZhao & Li,sp. nov.(♂♀, Guangxi, China),P. thamZhao & Li,sp. nov.(♂♀, northern Laos),Siamlema sueaZhao & Li,sp. nov.(♂♀, southern Thailand), andSundalema khaorakkiatZhao & Li,sp. nov.(♂♀, southern Thailand). Thirty species are transferred from the genusTelemaSimon, 1882 to the generaPinelemaWang & Li, 2012,Sundalemagen. nov., andTelemofilaWunderlich, 1995.Seychellia xinpingiLin & Li, 2008 is transferred toMekonglemagen. nov.asM. xinpingicomb. nov.Furthermore, the genusPinelemais divided into seven species groups based on male morphological characters.

A new genus, Promolotragen. nov., including two new species, P. hponkanrazisp. nov. (♂♀) and P. shankhaungsp. nov. (♂), is described from Myanmar. The new genus is similar to Molotra Ubick & Griswold, 2011 but can be distinguished by the completely fused bulb and cymbium, the presence of a receptacle, the absence of grooves connecting either the anterior or posterior pairs of spiracles, and the incised labium of both sexes.

Two new species of the genusOpopaeaSimon, 1892 are reported from Myanmar,O. kanpetletTong & Li,sp. nov.(♂♀) andO. zhigangiTong & Li,sp. nov.(♂♀). Morphological descriptions and photographic illustrations of the two new species are given. All types are preserved in the Institute of Zoology, Chinese Academy of Sciences in Beijing (IZCAS).

Thirty-one new species of the genus Leclercera Deeleman-Reinhold, 1995 from China, Indonesia, Malaysia, Myanmar, Nepal, and Thailand are described: L. mianqiusp. nov. (♂♀), L. thamsangensissp. nov. (♂♀), L. yandousp. nov. (♂♀), L. thamkaewensissp. nov. (♂♀), L. xiangbabangsp. nov. (♂♀), L. jianzuiyusp. nov. (♂♀), L. yamaensissp. nov. (♂♀), L. banensissp. nov. (♂♀), L. dumuzhousp. nov. (♀), L. suwanensissp. nov. (♂♀), L. maochongsp. nov. (♀), L. shanzisp. nov. (♀), L. duandaisp. nov. (♂♀), L. hponensissp. nov. (♂♀), L. lizisp. nov. (♂), L. xiaodaisp. nov. (♀), L. yanjingsp. nov. (♀), L. ekteenensissp. nov. (♂), L. zhamensissp. nov. (♂), L. sanjiaosp. nov. (♀), L. selasihensissp. nov. (♂♀), L. paiensissp. nov. (♀), L. yuanzhuisp. nov. (♀), L. zanggaensissp. nov. (♀), L. aniensissp. nov. (♂♀), L. renqinensissp. nov. (♂♀), L. shergylaensissp. nov. (♂♀), L. pulongensissp. nov. (♂), L. tudaosp. nov. (♂♀), L. duibaensissp. nov. (♂), and L. jiazhongensissp. nov. (♂♀). Types are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing.

Seven new species of jumping spiders collected from Xishuangbanna Tropical Botanical Garden, China are diagnosed and described:Cytaea tongisp. nov.(♂♀),Dexippus pengisp. nov.(♂♀),Euophrys subwanyansp. nov.(♂♀),Gelotia liuaesp. nov.(♂♀),Irura lvshilinensissp. nov.(♂♀),Rhene menglunensissp. nov.(♂♀), andSiler zhangaesp. nov.(♂). The female ofGelotia zhengiCao & Li, 2016 is described for the first time.

The genus Cyclocosmia Ausserer, 1871 of the spider family Halonoproctidae Pocock, 1901 includes ten known species from North America and Asia. Since Cyclocosmia ricketti was described by Pocock in 1901, no males of this species have ever been reported. The male of Cyclocosmia ricketti is described for the first time, based on a specimen collected near the type locality in Fujian Province, China. A morphological description and illustrations are given.

The spider family Pholcidae C.L. Koch, 1850 exhibits high diversity at generic level and currently contains 95 genera while the subfamily Arteminae Simon, 1893 contains only eight genera. In this study, a new genus, Changminia Yao & Li gen. nov. from karst caves in Southeast Asia, is described and assigned to Arteminae, with the type species Changminia huangdi (Tong & Li, 2009) comb. nov. (Hainan Island, South China) and one additional new species Changminia dao Yao & Li sp. nov. (male, female; Prachuap Kiri Khan, Central Thailand).

Two new species of the genus Chilobrachys Karsh, 1892 are described from China: Chilobrachys dominus Lin & Li, sp. nov. from Yunnan and C. jinchengi Lin & Li, sp. nov. from Tibet. Photos and a morphological description of the new species are given. The type specimens of the new species are deposited in the Institute of Zoology, Chinese Academy (IZCAS) in Beijing.

Edelithusgen. nov. is described based on the discovery and description of two new species from Xishuangbanna, Yunnan Province, China: E. puersp. nov. and E. shenmiguosp. nov. Both species are described in detail and illustrated. Types are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.

A new mysmenid genus, Chimenagen. nov., is reported from China. Two new species: C. qiongsp. nov. (Hainan, ♂♀, the type species) and C. nantousp. nov. (Taiwan, ♀) are illustrated and described in detail. A new combination is suggested: Chimena taiwanica (Ono, 2007) comb. nov. (Taiwan, ♂♀, transferred from Mysmena Simon, 1894). The molecular phylogeny and morphological characters were used to discuss the taxonomy and circumscription of the newly erected genus.

Nine new species of the orb-weaver spider family Araneidae Clerck, 1757 from Menglun Town, Xishuangbanna, Yunnan, China are described: Acusilas tongisp. nov. (♂♀), Chorizopes yuisp. nov. (♂♀), Chorizopesoides guoisp. nov. (♂♀), Deione chenisp. nov. (♀), D. yangisp. nov. (♂♀), Hypsosinga pullasp. nov. (♂♀), Mangora baiisp. nov. (♂♀), M. cephalasp. nov. (♂♀) and Milonia gemellasp. nov. (♂♀). The genus Milonia Thorell, 1890 is recorded from China for the first time. The previous description of Chorizopesoides wulingensis (Yin, Wang & Xie, 1994) from Libo County, Guizhou by Mi and Wang (2018) refers to Chorizopesoides annasestakovaesp. nov. (♂♀). Diagnostic photos of the habitus and copulatory organs of the new species are provided.

Five new species of the genus Macrothele Ausserer, 1871 are described from China: Macrothele emei Lin & Li, sp. nov. (♂♀, Sichuan), M. hanfeii Lin & Li, sp. nov. (♂♀, Hainan), M. hungae Lin & Li, sp. nov. (♂♀, Taiwan), M. limenghuai Lin & Li, sp. nov. (♂♀, Sichuan), and M. nanning Lin & Li, sp. nov. (♂♀, Guangxi). Types of the new species are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China.

The monotypic genus Bucliona Benoit, 1977 (type Clubiona dubia O. Pickard-Cambridge, 1870 from Saint Helena Island), previously considered a junior synonym of Clubiona Latreille, 1804, is resurrected. Three species are assigned to the genus Bucliona: B. dubia comb. reval., B. kirilli sp. n. (♂, Kenya), and B. jucunda (Karsch, 1879) comb. n., ex Clubiona (♂♀, Far East Asia).

Four new species belonging to Leptonetela Kratochvíl, 1978 and one new species belonging to Rhyssoleptoneta Tong & Li, 2007 are described from China: Leptonetela martensi spec. nov. (Guizhou; male, female), L. taixu spec. nov. (Guizhou; male, female), L. xianwu spec. nov. (Hubei; male, female), L. xinglong spec. nov. (Guizhou; male, female), and Rhyssoleptoneta aosen spec. nov. (Beijing; male, female). These new species bring the total number of Leptonetela to 117 species and Rhyssoleptoneta to 2 species worldwide.

Three new species of the extinct spider genus †Furcembolus Wunderlich, 2008 from Late Cretaceous Burmese amber are described: Furcembolus chuandiani Jiang & Li spec. nov., F. fengzheni Jiang & Li spec. nov. and F. martensi Jiang & Li spec. nov. All types are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing, China.

Yongxing Island (about 1.85 km2) is the largest island of the Xisha Islands. It is located in the Western South China Sea and belongs to the tropical ocean monsoon climate zone. Yongxing Island is quite rich in biological resources, for example, plants and birds which have been well documented. However, there are limited reports on spider resources in Yongxing Island. A preliminary checklist of spiders of the Yongxing Island is provided, based on a short-term study undertaken in January 2008. A total of 23 species, belonging to 21 genera and 11 families, were recorded from the area, which forms baseline information of spiders of the Yongxing Island. Amongst these, Oonopidae, Pholcidae, Araneidae and Salticidae were found to have more species in the area. Brignolia parumpunctata (Simon, 1893), Opopaea apicalis (Simon, 1893), Opopaea deserticola Simon, 1891 and Xyphinus baehrae Kranz-Baltensperger, 2014 were firstly reported from China, for which we provide taxonomic description in this paper.

Three new species of the genus Falcileptoneta Komatsu, 1970 belonging to the spider family Leptonetidae Simon 1890 are described from Korea. All species were collected from wet leaf litter layers.

Fourteen new species of the genus Thaiderces F.Y. Li & S.Q. Li, 2017 from Indonesia, Myanmar, and Thailand are described: T.shuzi Li & Chang, sp. nov. (♂♀), T.peterjaegeri Li & Chang, sp. nov. (♂), T.ganlan Li & Chang, sp. nov. (♂♀), T.ngalauindahensis Li & Chang, sp. nov. (♂), T.yangcong Li & Chang, sp. nov. (♂♀), T.zuichun Li & Chang, sp. nov. (♀), T.miantiao Li & Chang, sp. nov. (♀), T.jiazi Li & Chang, sp. nov. (♀), T.tuoyuan Li & Chang, sp. nov. (♂♀), T.fengniao Li & Chang, sp. nov. (♂♀), T.haima Li & Chang, sp. nov. (♂♀), T.chujiao Li & Chang, sp. nov. (♀), T.thamphadaengensis Li & Chang, sp. nov. (♂♀), and T.thamprikensis Li & Chang, sp. nov. (♂♀). In addition, two species of Psiloderces Simon, 1892 are transferred to Thaiderces: Thaidercesrimbu (Deeleman-Reinhold, 1995) comb. nov. (♂♀) and Thaidercesdjojosudharmoi (Deeleman-Reinhold, 1995) comb. nov. (♂♀).

Four new species are described in two psilodercid genera, Qiongocera Li & Li, 2017 and Relictocera Li & Li, 2017: Qiongoceraluoxuan Li & Li, sp. nov. (♂♀) from China, Relictocerawugen Li & Li, sp. nov. (♂♀) and R.sigen Li & Li, sp. nov. (♂) from Vietnam, and R.qianzi Li & Li, sp. nov. (♂♀) from Thailand. These genera were previously thought to be monotypic. In addition, one species of the genus Merizocera Fage, 1912 is transferred to Relictocera: Relictoceramus (Deeleman-Reinhold, 1995), comb. nov. (♂♀). The types of the new species are deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing.

Eleven species of the spider family Agelenidae Koch, 1837 are reviewed based on the type material and transferred from the genus Agelena Walckenaer, 1805 to MistariaLehtinen 1967. These species occur in various African countries as indicated and include: M.jaundea (Roewer, 1955), comb. nov. (♂, Cameroon), M.jumbo (Strand, 1913), comb. nov. (♂♀, Central & East Africa), M.kiboschensis (Lessert, 1915), comb. nov. (♂♀, Central & East Africa), M.keniana (Roewer, 1955), comb. nov. (♀, Kenya), M.lawrencei (Roewer, 1955), comb. nov. (♀, Zimbabwe), M.longimamillata (Roewer, 1955), comb. nov. (♀, Mozambique), M.moschiensis (Roewer, 1955), comb. nov. (♀, Tanzania), M.mossambica (Roewer, 1955), comb. nov. (♀, Mozambique), M.nyassana (Roewer, 1955), comb. nov. (♀, Malawi), M.teteana (Roewer, 1955), comb. nov. (♂, Mozambique) and M.zuluana (Roewer, 1955), comb. nov. (♀, South Africa).

A new genus of the subfamily Coelotinae F.O. Pickard-Cambridge, 1893, Guilotes Z. Zhao & S. Li, gen. n. from China is described, as well as four new species: G.ludiensis Z. Zhao & S. Li, sp. n. (♂♀, type species), G.qingshitanensis Z. Zhao & S. Li, sp. n. (♂♀), G.xingpingensis Z. Zhao & S. Li, sp. n. (♂♀) and G.yandongensis Z. Zhao & S. Li, sp. n. (♀). The DNA barcodes of all species are documented for future use.