The genome sequence of the Chequered Blue, Scolitantides orion (Pallas, 1771) (Lepidoptera: Lycaenidae)

<ns3:p> We present a genome assembly from a female specimen of <ns3:italic>Scolitantides orion</ns3:italic> (Chequered Blue; Arthropoda; Insecta; Lepidoptera; Lycaenidae). The assembly contains two haplotypes with total lengths of 525.32 megabases and 523.62 megabases. Most of haplotype 1 (99.85%) is scaffolded into 23 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 15.25 kilobases. This work is part of Project Psyche, a collaborative programme generating genomes for European butterflies and moths. </ns3:p>