Oecophoridae is a family of small moths in the superfamily Gelechioidea. The phylogeny and systematics of gelechoid moths are still not fully resolved, and the circumscription of the Oecophoridae is strongly affected by this.
The Elachistidae are a family of small moths in the superfamily Gelechioidea. Some authors lump about 3,300 species in eight subfamilies here, but this arrangement almost certainly results in a massively paraphyletic and completely unnatural assemblage, united merely by symplesiomorphies retained from the first gelechioid moths.
The Gelechiidae are a family of moths commonly referred to as twirler moths or gelechiid moths. They are the namesake family of the huge and little-studied superfamily Gelechioidea, and the family's taxonomy has been subject to considerable dispute. These are generally very small moths with narrow, fringed wings. The larvae of most species feed internally on various parts of their host plants, sometimes causing galls. Douglas-fir (Pseudotsuga) is a host plant common to many species of the family, particularly of the genus Chionodes, which as a result is more diverse in North America than usual for Gelechioidea.
The Batrachedridae are a small family of tiny moths. These are small, slender moths which rest with their wings wrapped tightly around their bodies.
The Lecithoceridae, or long-horned moths, are a family of small moths described by Simon Le Marchand in 1947. Although lecithocerids are found throughout the world, the great majority are found in the Indomalayan realm and the southern part of the Palaearctic realm.
Scythrididae is a family of small moths in the superfamily Gelechioidea. The family is sometimes included in the Xyloryctidae as a subfamily Scythridinae, but the Xyloryctidae themselves have sometimes been included in the Oecophoridae as subfamily. Scythrididae adults are smallish to mid-sized moths, which when at rest appear teardrop-shaped.
Pterolonchidae is a small family of very small moths in the superfamily Gelechioidea. There are species native to every continent except Australia and Antarctica.
Monochroa is a genus of moths in the family Gelechiidae.
Syncopacma is a genus of moths in the family Gelechiidae.
The Depressariinae – sometimes spelled "Depressiinae" in error – are a subfamily of moths in the superfamily Gelechioidea. Like their relatives therein, their exact relationships are not yet very well resolved. It has been considered part of family Elachistidae sensu lato or included in an expanded Oecophoridae. In modern classifications they are treated as the distinct gelechioid family Depressariidae.
Depressaria is a moth genus of the superfamily Gelechioidea. It is the type genus of subfamily Depressariinae, which is often – particularly in older treatments – considered a distinct family Depressariidae or included in the Elachistidae, but actually seems to belong in the Oecophoridae.
Agonopterix is a moth genus of the superfamily Gelechioidea. It is placed in the family Depressariidae, which was often – particularly in older treatments – considered a subfamily of the Oecophoridae or included in the Elachistidae.
Exaeretia is a moth genus of the superfamily Gelechioidea. It is placed in the family Depressariidae, which is often – particularly in older treatments – considered a subfamily of Oecophoridae or included in the Elachistidae.
Parametriotinae is a subfamily of moths in the family Elachistidae.
Epimarptidae was a former, or is a possible, monotypic family of moths in the moth superfamily Gelechioidea. It can now be seen as either a synonym of family Batrachedridae, or a monotypic subfamily of that family.
