Data from: Genomic integrity of Phyciodes butterfly species in a region of contact (Lepidoptera: Nymphalidae)

Crescent butterflies of the Phyciodes tharos group have a long-standing
reputation for taxonomic difficulty. We assessed species boundaries in the
P. tharos group using genome-wide SNP data, focusing on sampling in
western Canada where four species (P. tharos, P. cocyta, P. pulchella, and
P. batesii) have classically been recognized. Phylogenetic and
cluster-based analyses confirm that there are indeed four species based on
the maintenance of genomic integrity in the presence of occasional
hybridization and low levels of gene flow. Mitochondrial COI does not
consistently distinguish species, with haplotypes extensively shared
between species. Here, we provide data matrices and tree files from the
phylogenetic and cluster-based analyses.