Neopseustidae is a small family of day and night-flying "archaic bell moths" in the order Lepidoptera. They are classified into their own superfamily Neopseustoidea and infraorder Neopseustina. Four genera are known. These primitive moths are restricted to South America and Southeast Asia. Their biology is unknown.
Nepticuloidea is a superfamily of usually very small monotrysian moths that are characterised by small or large eyecaps over the compound eyes. It comprises two families, the "pigmy moths" (Nepticulidae), with 12 genera which are very diverse worldwide and are usually leaf miners, and the "white eyecap moths" (Opostegidae), also worldwide but with five genera and about a ninth as many species, whose biology is less well known.
Lophocoronoidea is a superfamily of insects in the order Lepidoptera. There is a single extant genus, Lophocorona, in the family Lophocoronidae. These are small, primitive nocturnal moths restricted to Australia whose biology is largely unknown.
Adeloidea is a superfamily of primitive monotrysian moths in the order Lepidoptera which consists of leafcutters, yucca moths and relatives. This superfamily is characterised by a piercing, extensible ovipositor used for laying eggs in plants. Many species are day-flying with metallic patterns.
Tischerioidea is the superfamily of "trumpet" leaf miner moths. The superfamily contains just one family, Tischeriidae, and traditionally one genus, Tischeria, but currently three genera are recognised, widespread around the world including South America, except for Australasia. This is one candidate as the sister group of the bulk of Lepidoptera, the Ditrysia, and they have a monotrysian type of female reproductive system. These small moths are leaf-miners in the caterpillar stage, feeding mainly on Fagaceae, Asteraceae, and Malvaceae (Astrotischeria), and some also on Rhamnaceae, Tiliaceae, and Rosaceae.
Cossoidea is the superfamily of moths that includes carpenter moths and relatives. Like their likely sister group Sesioidea they are internal feeders and have spiny pupae with moveable segments to allow them to extrude out of their exit holes in stems and trunks during emergence of the adult.
Nepticulidae is a family of very small moths with a worldwide distribution. They are characterised by eyecaps over the eyes. These pigmy moths or midget moths, as they are commonly known, include the smallest of all living moths, with a wingspan that can be as little as 3 mm in the case of the European pigmy sorrel moth, but more usually 3.5–10 mm. The wings of adult moths are narrow and lanceolate, sometimes with metallic markings, and with the venation very simplified compared to most other moths.
Incurvariidae is a family of small primitive monotrysian moths in the order Lepidoptera. There are twelve genera recognised. Many species are leaf miners and much is known of their host plants, excluding Paraclemensia acerifoliella. The most familiar species in Europe are perhaps Incurvaria masculella and Phylloporia bistrigella. The narrow wings are held tightly along the body at rest and some species have very long antennae.
The Adelidae or fairy longhorn moths are a family of monotrysian moths in the lepidopteran infraorder Heteroneura. The family was first described by Charles Théophile Bruand d'Uzelle in 1851. Most species have at least partially metallic, patterned coloration and are diurnal, sometimes swarming around the tips of branches with an undulating flight. Others are crepuscular and have a drab coloration. Fairy longhorn moths have a wingspan of 4–28 millimeters, and males often have especially long antennae, 1–3 times as long as the forewing.
Cecidosidae is a family of primitive monotrysian moths in the order Lepidoptera which have a piercing ovipositor used for laying eggs in plant tissue in which they induce galls, or they mine in bark. Nine species occur in southern Africa, five species in South America and Xanadoses nielseni was recently described from New Zealand. Some minute parasitoid wasps are known.
Crinopteryx is a monotypic genus of primitive monotrysian moths. Its sole species, Crinopteryx familiella, is endemic to Europe, where it is restricted to the Mediterranean region of France, Italy, the Iberian Peninsula and Sicily. Crinopteryx used to be classified in its own, monotypic family called Crinopterygidae, but the latter has been downgraded to a subfamily (Crinopteryginae) of the family Incurvariidae.
A family of primitive monotrysian moths in the order Lepidoptera, Heliozelidae are small, metallic day-flying moths with shiny smooth heads. In Europe the small adult moths are seldom noticed as they fly quite early in the spring. The larvae are leaf miners and the vacated leaf mines are distinctive because the larva leaves a large hole at the end.
Opostegidae or "white eyecap moths" is a family of insects in the order Lepidoptera that is characterised by particularly large eyecaps over the compound eyes. Opostegidae are most diverse in the New World tropics.
Neotheoridae, or Amazonian primitive ghost moths, is a primitive family of insects in the lepidopteran order containing a single genus and species, Neotheora chiloides.
Prototheora is a genus of moths. It is the only genus of the Prototheoridae, or the African primitive ghost moths, a family of insects in the lepidopteran order, contained in the superfamily Hepialoidea. These moths are endemic to Southern Africa.
Acanthopteroctetidae is a small family of primitive moths with two described genera, Acanthopteroctetes and Catapterix, and a total of seven described species. They are known as the archaic sun moths.
The Monotrysia are a group of moths in the lepidopteran order, not currently considered to be a natural group or clade. Apart from the recently discovered family Andesianidae, most of the group consists of small, relatively understudied species. The group is so named because the female has a single genital opening for mating and laying eggs, in contrast to the rest of the Lepidoptera (Ditrysia), which have two female reproductive openings. They comprise all of the group Heteroneura apart from the Ditrysia.
Micropterigoidea is the superfamily of "mandibulate archaic moths", all placed in the single family Micropterigidae, containing currently about twenty living genera. They are considered the most primitive extant lineage of lepidoptera, and the sole superfamily in the suborder Zeugloptera. The name comes from the Greek for mikros, little and pterux, a wing. Unique among the Lepidoptera, these moths have chewing mouthparts rather than a proboscis, and are seen feeding, often in large aggregations, on the pollen of the flowers of many herbaceous plants, shrubs and trees. The fossil record of the group goes back to the middle-late Jurassic with the earliest known species being Auliepterix from the Karabastau Formation in Kazakhstan.
Palaephatus is a genus of moths in the family Palaephatidae.
Sesommata trachyptera is a moth of the family Palaephatidae, found in the Valdivian forest region. It was described by Davis in 1986.
