Abstract
We present a genome assembly from an individual female Elophila nymphaeata (the Brown China-mark moth; Arthropoda; Insecta; Lepidoptera; Crambidae). The genome sequence is 734.1 megabases in span. Most of the assembly is scaffolded into 31 chromosomal pseudomolecules, including the Z and W sex chromosomes. The mitochondrial genome has also been assembled and is 15.3 kilobases in length. Gene annotation of this assembly on Ensembl identified 12,079 protein coding genes.