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uperregnumEukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Panorpida
Cladus: Amphiesmenoptera
Ordines: LepidopteraTrichoptera – †Permotrichoptera – †Tarachoptera
[list of ordines after Grimaldi & Engel (2005: 147, table 4.1)]

Familiae incertae sedis: †Cladochoristidae – †Eocoronidae
Name

Amphiesmenoptera
References

Grimaldi, D.; Engel, M.S. 2005: Evolution of the insects. Cambridge University Press, New York, USA. limited preview on Google books
Minet, J.; Huang, D-y.; Wu, H.; Nel, A. 2010: Early Mecopterida and the systematic position of the Microptysmatidae (Insecta: Endopterygota). Annales de la Société entomologique de France (n.s.), 46: 262–270. ISSN: 0037-9271
Mey, W.; Wichard, W.; Müller, P.; Wang B. 2017: The blueprint of the Amphiesmenoptera — Tarachoptera, a new order of insects from Burmese amber (Insecta, Amphiesmenoptera) Fossil Record, 20: 129-145. DOI: 10.5194/fr-20-129-2017

Amphiesmenoptera is an insect superorder, established by S. G. Kiriakoff,[1] but often credited to Willi Hennig in his revision of insect taxonomy for two sister orders: Lepidoptera (butterflies and moths) and Trichoptera (caddisflies). In 2017, a third fossil order was added to the group, the Tarachoptera.[2]

Trichoptera and Lepidoptera share a number of derived characters (synapomorphies) which demonstrate their common descent:

Females, rather than males, are heterogametic (i.e. their sex chromosomes differ).
Dense setae are present in the wings (modified into scales in Lepidoptera).
There is a particular venation pattern on the forewings (the double-looped anal veins).
Larvae have mouth structures and glands to make and manipulate silk.[3]

Thus these two extant orders are sisters, with Tarachoptera basal to both groups. Amphiesmenoptera probably evolved in the Jurassic.[3] Lepidoptera differ from the Trichoptera in several features, including wing venation, form of the scales on the wings, loss of the cerci, loss of an ocellus, and changes to the legs.[3]

Amphiesmenoptera are thought to be the sister group of Antliophora, a proposed superorder comprising Diptera (flies), Siphonaptera (fleas) and Mecoptera (scorpionflies). Together, Amphiesmenoptera and Antliophora compose the group Mecopterida.[4]
References

S. G. Kiriakoff (1948). "A classification of the Lepidoptera and related groups with some remarks on taxonomy". Biologisch Jaarboek. 15: 118–143.
Wolfram Mey; Wilfried Wichard; Patrick Müller; Bo Wang (2017). "The blueprint of the Amphiesmenoptera – Tarachoptera, a new order of insects from Burmese amber (Insecta, Amphiesmenoptera)". Fossil Record. 20 (2): 129–145. doi:10.5194/fr-20-129-2017.
D. Grimaldi; M. S. Engel (2005). Evolution of the Insects. Cambridge University Press. ISBN 0-521-82149-5.
M. F. Whiting; J. C. Carpenter; Q. D. Wheeler; W. C. Wheeler (March 1997). "The Strepsiptera problem: phylogeny of the holometabolous insect orders inferred from 18S and 28S ribosomal DNA sequences and morphology". Systematic Biology. 46 (1): 1–68. doi:10.1093/sysbio/46.1.1. PMID 11975347.

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