The Heleomyzidae is a small family of true flies in the insect order Diptera.

Most of the subfamilies have been commonly recognized as families in the past, but are now included within the Heleomyzidae.

McAlpine[3] recently combined Heleomyzidae and Sphaeroceridae into Heteromyzidae, but this arrangement has not been widely accepted.

Larvae feed on decaying plant and animal matter, mushrooms, and various fungi.

The larvae of the Holarctic Suilliinae and Tapeigaster occur principally in fungi.