Perrotia Oberthür, 1916,

Zhang, Jing, Cong, Qian, Shen, Jinhui, Song, Leina & Grishin, Nick V., 2023, Butterfly classification and species discovery using genomics, The Taxonomic Report of the International Lepidoptera Survey 11 (3), pp. 1-94 : 77

Perrotia Oberthür, 1916 is a junior subjective synonym of Galerga Mabille, 1898

Genomic trees reveal a tight clade of Malagasy species sister to a Malagasy genus Fulda Evans, 1937 (type species Hesperia coroller Boisduval, 1833 ) ( Fig. 45, 46). Currently, these species are placed in two genera: Perrotia Oberthür, 1916 (type species Perrotia albiplaga Oberthür, 1916 ) and Galerga Mabille, 1898 (type species Galerga hyposticta Mabille, 1898 ). However, the two genera are genetically close, e.g., the COI barcode difference between their type species is 7.3% (48 bp), and not distinctly differentiated from each other. Therefore, we propose to treat Perrotia Oberthür, 1916 , syn. nov. is a junior subjective synonym of Galerga Mabille, 1898 .