Abstract
We present a genome assembly from a male Zelleria hepariella (the Brown Ash Ermine; Arthropoda; Insecta; Lepidoptera; Yponomeutidae). The genome sequence is 428.8 megabases in span. Most of the assembly is scaffolded into 19 chromosomal pseudomolecules, including the Z sex chromosome. The mitochondrial genome has also been assembled and is 16.31 kilobases in length. Gene annotation of this assembly on Ensembl identified 15,718 protein coding genes.