Notable Hesperiidae collected by Kilian Roever in Arizona, USA.

Genomic analysis of Hesperiidae specimens collected by Kilian Roever in Arizona, USA, and deposited in the McGuire Center for Lepidoptera and Biodiversity (Florida Museum of Natural History, Gainesville, FL, USA) confirms several published state species records, reveals that <i>Cecropterus</i> (<i>Murgaria</i>) <i>markwalkeri</i> Grishin, 2023, <i>Telegonus</i> (<i>Telegonus</i>) <i>misitra</i> (Plötz, 1881), and <i>Epargyreus cruza</i> Evans, 1952 have been found in Arizona with sequenced specimens representing first confirmed USA records of these three species, and allows us to discover new taxa <i>Cecropterus</i> (<i>Murgaria</i>) <i>roeveri</i> Grishin, <b>sp. n.</b> and <i>Lerema</i> (<i>Lerema</i>) <i>ochrius occidus</i> Grishin, <b>ssp. n</b>. This study underscores the value of extensive collecting and careful specimen preservation for research.