Further taxonomic studies of the mimetic genus Euryobeidia Fletcher, 1979 (Lepidoptera, Geometridae, Ennominae, Baptini), with descriptions of four new taxa and two status changes

The genus <i>Euryobeidia</i> Fletcher, 1979, is reviewed based on morphological characters and available molecular data of cytochrome c oxidase subunit I. Four new taxa of this genus are described: <i>E. supercostata</i> <b>sp. nov.</b> and <i>E. tigratoides</i> <b>sp. nov.</b> from Hainan, China; <i>E. xuei</i> <b>sp. nov.</b> from N. Vietnam and Yunnan, China; and <i>E. tigratoides leopardiformis</i> <b>subsp. nov.</b> from Hubei and Sichuan, China. <i>E. incrassata</i> Xiang & Han, 2017 is downgraded to subspecies rank under <i>E. languidata</i> (Walker, 1862) (<i>E. languidata incrassata</i> Xiang & Han, 2017, <b>stat. nov.</b>). The subspecies <i>E. languidata yakushimensis</i> Inoue, 1976, is raised to species status (<i>E. yakushimensis</i> Inoue, 1976, <b>stat. nov.</b>). Adult males and females of all taxa mentioned above, including their genitalia, are illustrated, except for <i>E. supercostata</i> <b>sp. nov.</b> and <i>E. xuei</i> <b>sp. nov.</b>, which are known only from males. An identification key and a geographic distribution map for all known taxa of <i>Euryobeidia</i> are presented. The systematics and mimetic relationships of <i>Euryobeidia</i> are briefly discussed.