For decades, a handful of gene markers have given us a glimpseof the genotype to combine with phenotypic traits. Today, wecan sequence entire genomes from hundreds of species and gainyet closer scrutiny. To illustrate the power of genomics, we havechosen skipper butterflies (Hesperiidae). The genomes of 250 rep-resentative species of skippers reveal rampant inconsistenciesbetween their current classification and a genome-based phy-logeny. (Vínculo)