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Background: The theridiid spider genus Stemmops O. Pickard-Cambridge, 1894 includes 27 extant species and is distributed in America (23 spp.) and Asia (4 spp.). Three species, S. forcipus Zhu, 1998 (♂♀), S. nigrabdomenus Zhu, 1998 (♂) and S. nipponicus Yaginuma, 1969 (♂♀), are currently known from China. New information: Two new species of Stemmops are described from China: S. atratus sp. n. (♀, Jiangsu, Zhejiang) and S. lini sp. n. (♂♀, Fujian, Zhejiang). In addition, the previously unknown female of S. nigrabdomenus Zhu, 1998 is described. Photos and morphological descriptions are provided. [ABSTRACT FROM AUTHOR]

Background: The spider genus Stiphropus Gerstaecker, 1873 currently includes 21 extant species that are distributed in Africa (12) and Asia (9). Four species, S. falciformus Yang, Zhu & Song, 2006, S. myrmecophilus Huang & Lin, 2020, S. ocellatus Thorell, 1887 and S. soureni Sen, 1964, are currently known from China. New information: The mismatched female of S. falciformus is reported as a new species: S. qianlei sp. n. (♂♀). The unknown male of S. soureni Sen, 1964 is described for the first time. Photos and morphological descriptions are provided. [ABSTRACT FROM AUTHOR]