Erebia (Erebia) pawloskii bilibinia, 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 : 9-10

Erebia (Erebia) pawloskii bilibinia Grishin, new subspecies

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( Figs. 3 part, 4)

Definition and diagnosis. Genomic analysis of Erebia (Erebia) pawloskii Ménétriés, 1859 (type locality in Russia: Sakha) specimens reveals a clade of a pair from Chukotka, Russia, not monophyletic with any

represents a new subspecies. It differs by smaller orange and cream spots than in most other subspecies (except the two mentioned next), the spots are vestigial in the posterior 2/3 rd of the hindwing of a male, but larger ventral hindwing cream spots than in Erebia pawloskii alaskensis W. Holland, 1900 (type locality in USA: Alaska) and Erebia pawloskii canadensis B. Warren, 1931 (type locality in Canada: Manitoba). Due to unexplored individual variation in this subspecies, most reliable identification is achieved by DNA, and a combination of the following base pairs is diagnostic in the nuclear genome: hm2021401- RA.2:C36T, hm2021401-RA.2:T87C, hm2004829-RA.3:C54T, hm2007306-RA.8:A114G, hm2018041- RA.1:A456G. However, this taxon does not differ from other subspecies and even related species in the COI barcode because the mitochondrial genome seems to introgress among the relatives ( Fig. 3b).

Barcode sequence of the holotype. Sample NVG-24041B06, GenBank PV549978, 658 base pairs: AACATTATATTTTATTTTTGGAATTTGAGCAGGTATAGTAGGTACATCTCTCAGTTTAATTATTCGAACAGAATTAGGTAATCCAGGATCTTTAATTGGAGATGATCAAATTTATAATACT ATTGTTACAGCCCATGCTTTTATTATAATTTTTTTTATAGTTATACCTATTATAATTGGAGGATTCGGTAATTGACTTATTCCTATTATATTAGGAGCCCCTGATATAGCTTTCCCTCGAA TAAATAATATAAGATTTTGACTCCTTCCCCCCTCTTTAATTTTATTAATTTCAAGTAGTATTGTAGAAAATGGTGCTGGTACAGGATGAACGGTTTATCCCCCCCTTTCATCTAATATTGC TCACAGTGGATCTTCTGTTGATTTAGCAATTTTCTCTTTACATTTAGCTGGAATTTCATCAATTCTTGGAGCTATTAATTTTATTACAACAATTATTAATATACGAATTAATAGTATATCT TATGATCAAATACCATTATTTGTTTGAGCTGTTGGAATTACAGCATTATTATTATTACTCTCTCTACCTGTATTAGCTGGAGCTATTACAATACTTCTTACAGATCGAAATTTAAACACCT CTTTTTTTGATCCTGCAGGAGGAGGAGATCCTATTTTATACCAACATTTATTT

Type material. Holotype: ♂ deposited in the Staatliches Museum für Naturkunde, Stuttgart, Germany ( SMNS), illustrated in Fig. 4a, bears the following four printed rectangular labels, three white: [ Russland, E.-Sibiria | Chukotka, Bilibino | VII. 1993 | leg. Karpov], [ex coll. W. Eckweiler | SMNS-Lep. 2005 – 07], [DNA sample ID: | NVG-24041B06 | c/o Nick V. Grishin ], and one red [HOLOTYPE ♂ | Erebia pawloskii | bilibinia Grishin ]. Paratype: 1♀ NVG-24041B07 the same data as the holotype ( Fig. 4b).

Type locality. Russia: Chukotka, Bilibino .

Etymology. The name is given for the type locality and is treated as a feminine noun in apposition.

Distribution. Currently known only from Chukotka in Russia.