Locris, Zhang & Cong & Shen & Song & Grishin, 2025

Zhang, Jing, Cong, Qian, Shen, Jinhui, Song, Leina & Grishin, Nick V., 2025, Advancing butterfly systematics through genomic analysis, The Taxonomic Report of the International Lepidoptera Survey 12 (5), pp. 1-201 : 14-15

Locris Grishin , new subgenus

http://zoobank.org/ F0535E1E-FBA7-45EC-AFA8-345BD6BC7C75

Type species. Lasaia oileus Godman, 1903 .

Definition. Genomic phylogeny of Lasaia Bates, 1868 (type species Papilio meris Stoll, 1781 ) reveals that Lasaia oileus Godman, 1903 (type locality in Paraguay) ( Fig. 10 red) is sister to all other species and is strongly differentiated from them genetically at the subgenus level ( Fig. 10 blue vs. red); e.g., their COI barcodes differ by 7.4–8.4% (49–55 bp) and, therefore, the clade with L. oileus represents a new subgenus. This new subgenus keys to 10a in the Lasaia key of Clench (1972) and corresponds, in part, to the “E. oileus group” of Clench inherited from the “Cohort 3. Oileiformis” of Stichel (1910 -1911), who described its phenotypic characters in detail, first, for the genus Lasaia , and second for “Oileiformis”, which he has not proposed a genus group name for, but characterized as “ground color of the wings above in both sexes blackish or brown,” in contrast to bluish, greenish, or grayish tones in males of other Lasaia . To this definition, the following should be added: smaller size than its congeners; white spots in several cells by the forewing costa about 2/3 from the base and pale submarginal overscaling on the hindwing above between dark-brown spots and dots; and prominent white segments on the fringes, particularly on the hindwing. In DNA, a combination of the following characters is diagnostic in the nuclear genome:

cne657.9.2:A465C, cne8314.8.1:A224G, cne7888.2.6:G30A, cne5774.10.1:T414C, cne5774.10.1:T426A; and in COI barcode: A22T, T121A, T418C, T374G, A625T, A637T.

Etymology. Oileus (Ὀϊλεύς) was the king of Locris , a region in ancient Greece. The name is a masculine noun in the nominative singular.

Species included. Only the type species (i.e., Lasaia oileus Godman, 1903 ).

Parent taxon. Genus Lasaia H. Bates, 1868 .