Asheum is a genus of European non-biting midges in the subfamily Chironominae of the bloodworm family Chironomidae. It was originally named Pedionomus by James E. Sublette in 1964; this name was discovered by Patrick Ashe to be preoccupied by Pedionomus <small>Gould, 1840</small>, so it was renamed to Asheum by both James E. and Mary S. Sublette in 1983, naming it after Patrick Ashe. Asheum is sometimes considered to be a subgenus of Polypedilum.