Chirgus (Chirgus) biseriatus (Weymer, 1890)

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 : 149

Chirgus (Chirgus) biseriatus (Weymer, 1890) is a species

distinct from Chirgus (Chirgus) limbata (Erschoff, 1876)

Genomic analysis of the lectotype of Carterocephalus biseriatus Weymer, 1890 (type locality in Bolivia, sequenced as NVG-15033H08) reveals that it belongs to a different clade than Chirgus limbata (Erschoff, 1876) (type locality in Peru), is confidently placed as sister to Chirgus nigella (Weeks, 1902) (type locality in Bolivia) in the Z chromosome tree, and is genetically differentiated from them at the species level ( Fig. 109), e.g., the COI barcodes of C. biseriatus and C. nigella differ by 2.3% (15 bp). Therefore, we propose that Chirgus (Chirgus) biseriatus (Weymer, 1890) , stat. rest. is a species distinct from Chirgus (Chirgus) limbata (Erschoff, 1876) .