Broad, G2025-02-102025-02-102024-07-26Broad GR, Natural History Museum Genome Acquisition Lab, Darwin Tree of Life Barcoding collective et al. The genome sequence of the Dark Crimson Underwing moth, Catocala sponsa Linnaeus, 1767 [version 1; peer review: 3 approved] Wellcome Open Research 2024, 9:412 https://doi.org/10.12688/wellcomeopenres.22759.12398-502X10.12688/wellcomeopenres.22759.1http://hdl.handle.net/10141/623210We present a genome assembly from an individual female Catocala sponsa (the Dark Crimson Underwing; Arthropoda; Insecta; Lepidoptera; Erebidae). The genome sequence spans 803.70 megabases. Most of the assembly is scaffolded into 32 chromosomal pseudomolecules, including the Z and W sex chromosomes. The mitochondrial genome has also been assembled and is 15.57 kilobases in length. Gene annotation of this assembly on Ensembl identified 13,493 protein-coding genes.enopenAccesshttps://creativecommons.org/licenses/by/4.0/deed.enJournal Article2398-502XWellcome Open Research2025-01-319412-412Catocala sponsaDark Crimson Underwinggenome sequencechromosomalLepidoptera