Abstract
We present a genome assembly from an individual female Anthomyza gracilis (anthomyzid fly; Arthropoda; Insecta; Diptera; Anthomyzidae). The assembly contains two haplotypes with total lengths of 576.40 megabases and 595.67 megabases. Most of haplotype 1 (97.03%) is scaffolded into 6 chromosomal pseudomolecules. Haplotype 2 was assembled to scaffold level. The mitochondrial genome has also been assembled, with a length of 16.87 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.