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 Euryobeidia 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: E. supercostata sp. nov. and E. tigratoides sp. nov. from Hainan, China; E. xuei sp. nov. from N. Vietnam and Yunnan, China; and E. tigratoides leopardiformis subsp. nov. from Hubei and Sichuan, China. E. incrassata Xiang & Han, 2017 is downgraded to subspecies rank under E. languidata (Walker, 1862) (E. languidata incrassata Xiang & Han, 2017, stat. nov.).

The subspecies E. languidata yakushimensis Inoue, 1976, is raised to species status (E. yakushimensis Inoue, 1976, stat. nov.). Adult males and females of all taxa mentioned above, including their genitalia, are illustrated, except for E. supercostata sp. nov. and E. xuei sp. nov., which are known only from males. An identification key and a geographic distribution map for all known taxa of Euryobeidia are presented.

The systematics and mimetic relationships of Euryobeidia are briefly discussed.