The genome sequence of a hoverfly , <i>Melangyna compositarum</i> (Verrall, 1873) (Diptera: Syrphidae)

We present a genome assembly from an individual male <i>Melangyna compositarum</i> (hoverfly; Arthropoda; Insecta; Diptera; Syrphidae). The assembly contains two haplotypes with total lengths of 999.96 megabases and 858.82 megabases. Most of haplotype 1 (91.7%) is scaffolded into 5 chromosomal pseudomolecules, including the X sex chromosome. 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.