Yaginumia medog Mi & Wang, sp. nov. A–G female paratype TRU-Araneidae-327 H–J male holotype A epigyne, ventral view B ibid., posterior view C vulva, posterior view D ibid., dorsal view E, H habitus, dorsal view F, I ibid., ventral view G, J ibid., lateral view. Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, Sp spermatheca. Scale bars: 0.1 mm (A–D); 1.0 mm (E–J).