The genome sequence of the Chalk Yellow-face Bee, <i>Hylaeus dilatatus</i> (Kirby, 1802) (Hymenoptera: Colletidae)

We present a genome assembly from an individual female <i>Hylaeus dilatatus</i> (Chalk Yellow-face Bee; Arthropoda; Insecta; Hymenoptera; Colletidae). The assembly contains two haplotypes with total lengths of 307.38 megabases and 314.32 megabases. Most of haplotype 1 (82.9%) is scaffolded into 12 chromosomal pseudomolecules. Most of haplotype 2 (73.52%) is scaffolded into 12 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 17.78 kilobases. This assembly was generated as part of the Darwin Tree of Life project, which produces reference genomes for eukaryotic species found in Britain and Ireland.