Members of this family are typically very similar to polycentropodids, most of them can be differentiated by the spur formula is 2-4-4, thyridial cell short, absence of the forewing fork I, and hindwing forks I and IV (except in Eoneureclipsis).

Male genitalia has elongate preanal appendages, and reduced tergum IX.

[1] The larvae differ by the submental sclerites separated, foretrochantin broad, and the pupal mandible apex whip-like.

[4] Psychomyiella Ulmer, 1908 is considered a junior synonym of Psychomyiia.

[6] These 10 genera belong to the family Psychomyiidae: Data sources: i = ITIS,[4] c = Catalogue of Life,[8] g = GBIF,[9] b = Bugguide.net[10]