Alucitoidea
Encyclopedia
Aluctoidea is the superfamily
Taxonomic rank
In biological classification, rank is the level in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, and class. Each rank subsumes under it a number of less general categories...

 of many-plumed and false plume moths. These small moth
Moth
A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

s are most easily reccognized by their wings
Insect wing
Insects are the only group of invertebrates known to have evolved flight. Insects possess some remarkable flight characteristics and abilities, still far superior to attempts by humans to replicate their capabilities. Even our understanding of the aerodynamics of flexible, flapping wings and how...

. These each consist of many (typically more than 3) narrow strips of membrane around the major veins, instead of a continuous sheet of membrane between the veins. In living moths in the wild, this is often hard to see however. When they are at rest, the "plumes" partly overlap, appearing as solid wings. But even then, they can can be recognized by the wings having a marked lengthwise pattern and uneven edge.

They contain two families
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 at most:
  • Alucitidae – many-plumed moths
  • Tineodidae
    Tineodidae
    | name = False plume moths| image =| image_width =| image_caption =| regnum = Animalia| phylum = Arthropoda| classis = Insecta| ordo = Lepidoptera| subordo = Glossata| infraordo = Heteroneura| unranked_superfamilia = Ditrysia...

     – false plume moths


Sometimes, only one family is accepted, Tineodidae being merged into Alucitidae with the Alucitoidea thus becoming monotypic
Monotypic
In biology, a monotypic taxon is a taxonomic group with only one biological type. The term's usage differs slightly between botany and zoology. The term monotypic has a separate use in conservation biology, monotypic habitat, regarding species habitat conversion eliminating biodiversity and...

. Most of the roughly 160 described species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 in the superfamily belong to the many-plumed moths; these include a few rather widespread genera
Genera
Genera is a commercial operating system and development environment for Lisp machines developed by Symbolics. It is essentially a fork of an earlier operating system originating on the MIT AI Lab's Lisp machines which Symbolics had used in common with LMI and Texas Instruments...

. The false plume moths consist of numerous small and well-distinct lineages; none of their genera have managed to become as successful as the Alucitidae.

Systematics and taxonomy

Even though they are "micromoths
Microlepidoptera
Microlepidoptera is an artificial grouping of moth families, commonly known as the 'smaller moths' . These generally have a wingspan of under 20 mm, and are thus harder to identify by external phenotypic markings than macrolepidoptera...

", the Aluctoidea are not especially primitive Lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...

; the sizeable carpenter moths (Cossidae) as well as the butterflies are not particularly distant relatives. The closest living relatives of the Aluctoidea, however, seem to be the plume moth
Plume moth
The Pterophoridae or plume moths are a family of Lepidoptera with unusually modified wings. Though they belong to the Apoditrysia like the larger moths and the butterflies, unlike these they are tiny and were formerly included among the assemblage called "Microlepidoptera".-Description and...

s (Pterophoroidea), which like the many-plumed moths have wings consisting each of several narrow straps (though less strikingly so than in the Aluctoidea). However, the taxonomic treatment of the many-plumed moths among the Ditrysia is disputed, mostly because of their unclear relationship to the fruitworm moths (Copromorphoidea).

In the arrangement used here, the Copromorphoidea are considered obtectomeran Ditrysia, significantly more advanced than the Aluctoidea (which certainly belong to the basal lineages of Apoditrysia). Some authors disagree and instead assume the Copromorphoidea to be closer relatives of the Alucitidae than even the Tineodidae and Pterophoroidea. This splits the many-plumed moths into two lineages, the Alucitidae (as well as the fringe-tufted moths, Epermeniidae) being included in an expanded Copromorphoidea, and the Tineodidae affiliated with the plume moth instead. The subfamily Alucitoidea is thus abandoned in this approach. The rationale for doing so is the marked similarity of Alucitidae caterpillar
Caterpillar
Caterpillars are the larval form of members of the order Lepidoptera . They are mostly herbivorous in food habit, although some species are insectivorous. Caterpillars are voracious feeders and many of them are considered to be pests in agriculture...

s and chrysalises to those of Copromorphoidea. But this may simply be convergent evolution
Convergent evolution
Convergent evolution describes the acquisition of the same biological trait in unrelated lineages.The wing is a classic example of convergent evolution in action. Although their last common ancestor did not have wings, both birds and bats do, and are capable of powered flight. The wings are...

 or symplesiomorphies, considering that the Copromorphoidea otherwise appear to possess the characteristic synapomorphies of the Obtectomera, which are absent in Aluctoidea.
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