Maximum Likelihood phylogenetic reconstruction of 44 unique Perlesta CO1 haplotypes using the GTR+I+G nucleotide substitution model. Haplotypes represented by more than one specimen are indicated in parentheses beside corresponding GenBank accession numbers. Outgroup taxa: Beloneuria georgiana, Perlinella drymo, and Perlinella ephyre. Bootstrap scores from 1,000 replicates are displayed at nodes. Scale bar represents the estimated number of nucleotide substitutions per site.