We present a genome assembly from an individual Xylocampa areola (the early grey; Arthropoda; Insecta; Lepidoptera; Noctuidae). The genome sequence is 565 megabases in span. Most of the assembly is scaffolded into 31 chromosomal pseudomolecules, including the assembled Z sex chromosome. The mitochondrial genome has also been assembled and is 15.5 kilobases in length. Gene annotation of this assembly on Ensembl identified 18,869 protein coding genes.