The genome sequence of the Sage Skipper, <i>Muschampia proto</i> (Ochsenheimer, 1808) (Lepidoptera: Hesperiidae)

We present a genome assembly from a male specimen of <i>Muschampia proto</i> (Sage Skipper; Arthropoda; Insecta; Lepidoptera; Hesperiidae). The assembly contains two haplotypes with total lengths of 542.52 megabases and 541.58 megabases. Most of haplotype 1 (99.67%) is scaffolded into 30 chromosomal pseudomolecules, including the Z sex chromosome. Haplotype 2 was assembled to scaffold level. The mitochondrial genome has also been assembled, with a length of 15.37 kilobases. This work is part of Project Psyche, a collaborative programme generating genomes for European butterflies and moths.