Psychodomorpha

The nematoceran infraorder Psychodomorpha (sometimes misspelled as Psychomorpha, which is the name of a genus of noctuid moths) includes three families, Psychodidae, Blephariceridae, and Tanyderidae, as well as the superfamily Scatopsoidea, which contains the families Canthyloscelidae, Scatopsidae and Valeseguyidae.

Tanyderidae, sometimes called primitive crane flies, are long, delicate flies with spotted or mottled wings, superficially resembling true crane flies (Tipulidae). Adults are typically found resting on vegetation near streams, while larvae occur in wet, decaying wood or along sandy and gravelly stream margins. Several fossil species are also known.

The Canthyloscelidae are a small family of midges closely related to the Scatopsidae.

Scatopsoidea is a superfamily of true flies that comprises the families Canthyloscelidae, Scatopsidae, and Valeseguyidae. There are about 400 known species worldwide but more may yet to be discovered, especially in the tropics.

species of insect