Samples used for sequencing. H genotype: Hc = Hcenea, Hh = Hhippocoonides. #Paired-end reads: number of raw Illumina reads generated for each specimen. Estimated coverage is calculated via: (number of raw reads * read length) / length of genome assembly. Read length was 125 bp. The actual coverage is expected to be lower due to not all reads passing quality control and the presence of contamination. ‘x’ in the last two columns indicates whether the specimen carried an allele with the reference orientation and the 40 kb inversion.