We present a genome assembly from a female Philonthus spinipes (rove beetle; Arthropoda; Insecta; Coleoptera; Staphylinidae). The genome sequence has a total length of 671.10 megabases. Most of the assembly is scaffolded into 25 chromosomal pseudomolecules, including the X sex chromosome. The mitochondrial genome has also been assembled and is 19.08 kilobases in length. Gene annotation of this assembly on Ensembl identified 30,004 protein-coding genes.
