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Lysiteles Simon, 1895 contains 64 nominal species distributed in East, South and South Asia. It possesses very high species diversity in China (with 46 and 32 endemics), Bhutan (with 9 and 1 endemic) and Nepal (with 8 and 4 endemics).In June 2023, a spider survey of Cibagou National Nature Reserve, Xizang, China was carried out. After examination and morphological comparison, two Lysiteles species were recognised as new to science.Two new species of Lysiteles Simon, 1895 collected from Cibagou National Nature Reserve, Xizang, China are described: L. cibagou sp. nov. (♂♀) and L. tangi sp. nov. (♂♀). Diagnostic photos of habitus and copulatory organs and a distributional map are provided.

The orb-weaver spider genus Gea C.L. Koch, 1843 from China is revised, and three species including one new species, are recognized: Gea jingdong Mi, Wang & Gan, sp. nov. (♂♀) from Yunnan; Gea spinipes C.L. Koch, 1843 (♂♀) from Guangdong, Guangxi, Guizhou, Hainan, Taiwan, and Yunnan; and Gea subarmata Thorell, 1890 (♂♀) from Guangxi and Hainan. Gea subarmata is newly recorded in China.

Hahnia, the most species-diversity genus of the comb-tailed spider family Hahniidae Bertkau, 1878, compromises 102 species distributed worldwide. To date, 24 species have been recorded from China.A new species of the genus Hahnia C. L. Koch, 1841 is described, based on both sexes from Shanyang Cave of Guizhou Province, China and is named H. jiangkou sp. nov. Diagnostic photos of habitus and copulatory organs, as well as a distributional map, are provided.

Six new species of the genus Araneus Clerck, 1757 from Fanjingshan National Nature Reserve in Guizhou Province, China are described: Araneus chenjingi sp. nov. (♂♀), and A. yuboi sp. nov. (♂♀) are assigned to the A. diadematus group; A. lihaiboi sp. nov. (♂♀), A. shii sp. nov. (♂♀), A. wanghuai sp. nov. (♂♀), and A. yangchuandongi sp. nov. (♂♀) are assigned to the A. sturmi group. Araneus colubrinus Song & Zhu, 1992 is redescribed. A new synonym of Araneus colubrinus Song & Zhu, 1992 is proposed: Araneus octodentalis Song & Zhu, 1992 syn. nov.

The wall crab spider genus Siamspinops Dankittipakul & Corronca, 2009 contains eight species restricted to South and Southeast Asia, of which two are recorded from China.A new species, Siamspinops yejiei sp. n., is diagnosed and described based on both sexes from Foding Mountain National Nature Reserve, Guizhou, China. Diagnostic photos of the habitus and copulatory organs and a distributional map are provided.

The jumping spider genus Pancorius Simon, 1902 is represented by 40 species primarily distributed in East, South and Southeast Asia. Amongst these, 10 (including eight endemics) are known from China.A new species, Pancorius lui sp. nov., is diagnosed and described, based on both sexes from Yuntai Mountain in Guizhou of China. Diagnostic photos and a distribution map are provided.

Abstract Reducing the high operation temperature of gas sensor to room temperature (RT) have attracted intense interests for its distinct preponderances, including energy‐saving and super stability, which presents great prospects in commercial application. The exciting strategies for RT gas sensing, such as unique materials with activated surface or light activation, do not directly modulate the active ions for gas sensing, limiting the RT gas sensing performances. Here, an active‐ion‐gated strategy has been proposed for RT gas sensing with high performance and low power consumption, in which gas ions in triboelectric plasma are introduced into metal oxide semiconductor (MOS) film to act as both floating gate and active sensing ions. The active‐ion‐gated ZnO nanowires (NWs) array shows a sensitivity of 38.3% to 10 ppm acetone gas at RT, and the maximum power consumption is only 4.5 mW. At the same time, the gas sensor exhibits excellent selectivity to acetone. More importantly, the response (recovery) time of this sensor is as low as 11 s (25 s). It is found that OH−(H2O)4 ions in plasma are the key for realizing RT gas sensing ability, and an accompanied resistive switch is also observed. It is considered that the electron transfer between OH−(H2O)4 and ZnO NWs will forms a hydroxyl‐like intermediate state (OH*) on the top of Zn2+, leading to the band bending of ZnO and activating the reactive O2− ions on the oxygen vacancies. The active‐ion‐gated strategy proposed here present a novel exploration to achieving RT gas sensing performance of MOS by activating sensing properties at the scale of ions or atoms.

Based on morphological and molecular evidence, Argiope macrochoera Thorell, 1891 from China is found to be the unknown female of A. cameloides Zhu & Song, 1994, the known male of A. perforata Schenkel, 1963 is mismatched and provisionally suggested to be the male of A. boesenbergi Levi, 1983, and the true male of A. perforata Schenkel, 1963 is described for the first time. Argiope abramovi Logunov & Jäger, 2015 is suggested to be a synonym of A. perforata Schenkel, 1963. Argiope chloreides Chrysanthus, 1961 and A. vietnamensis Ono, 2010 are newly recorded from China. The unknown male of A. vietnamensis Ono, 2010 is described for the first time.

Three new species of the genus Mimetus Hentz, 1832 are described and named as M. bucerus sp. nov. (♂), M. lingbaoshanensis sp. nov. (♂♀) and M. yinae sp. nov. (♂♀). Detailed morphological descriptions, photos of the body and copulatory organs, line drawings of copulatory organs, as well as the distribution maps are provided.