Corrachia Schaus, 1913

Zhang, Jing, Cong, Qian, Shen, Jinhui, Opler, Paul A. & Grishin, Nick V., 2021, Genomics-guided refinement of butterfly taxonomy, The Taxonomic Report of the International Lepidoptera Survey 9 (3), pp. 1-55 : 13

Corrachia Schaus, 1913 is a subgenus of Styx Staudinger, 1876

Two monotypic genera Styx Staudinger, 1876 (type and the only species Styx infernalis Staudinger, 1875 ) and Corrachia Schaus, 1913 (type and the only species Corrachia leucoplaga Schaus, 1913 ) are close sisters (Fig. 14 red and green). Hindered by substantial difference in appearance, their close kinship has been revealed by DNA sequencing and discussed in detail ( Espeland et al. 2015). Their COI barcodes differ by only 7.4% (49 bp). Here, we take the next step and eliminate the two monotypic genera

Fig. 14. Nemeobiini genera: Hamearis (black), Styx

by proposing that Corrachia Schaus, 1913 is a (red and green), Polycaena (blue and magenta), subgenus of Styx Staudinger, 1876 . Considering these Dodona (olive), new genus ( Espeland et al. 2015), two close relatives to be congeneric is more revealing Stiboges (cyan) and Zemeros (purple).

about their evolutionary relationship than keeping them in two not prominently distinct monotypic genera.