Family Diadocidiidae Edwards 1925 (fungus gnat)
Parent taxon: Sciaroidea according to D. K. Yeates et al. 2007
Sister taxa: Bolitophilidae, Cecidomyiidae, Ditomyiidae, Keroplatidae, Lygistorrhinidae, Mycetophilidae, Paraxymyiidae, Sciaridae, Thereotricha
Subtaxa: Docidiadia
Ecology: