Euryeidon dian sp. nov., holotype male (A, B) and paratype female (C–F) A habitus, dorsal view B habitus, ventral view C habitus, dorsal view D habitus, ventral view E epigyne, ventral view F vulva, dorsal view. Abbreviations: CD copulatory duct, CO copulatory opening, FD fertilization duct, SP spermatheca. Scale bars: 1.00 mm (A–D); 0.20 mm (E, F).