We present a genome assembly from an individual male Agrochola circellaris (the Brick; Arthropoda; Insecta; Lepidoptera; Noctuidae). The genome sequence is 572 megabases in span. Most of the assembly is scaffolded into 30 chromosomal pseudomolecules, including the Z sex chromosome. The mitochondrial genome has also been assembled and is 15.5 kilobases in length. Gene annotation of this assembly on Ensembl has identified 18,319 protein coding genes.