The Lonchaeoidea are a superfamily of generally small or very small black flies with large heads.

It contains two families, the Lonchaeidae (lance flies)[1] and the Cryptochetidae.

The superfamily was established by G. C. Griffiths in 1972[2] and came into general use as such.

[3] Characteristics of the Lonchaeoidea include antennae with the second segment cleft, and not more than one proclinate orbital bristle on each side.

This article related to members of the muscomorph fly subsection Acalyptratae is a stub.