Polyneoptera

Polyneoptera
	Some representatives
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
(unranked):	Dicondylia
Subclass:	Pterygota
Infraclass:	Neoptera
Cohort:	Polyneoptera; Martynov, 1923
Orders
	See text
Synonyms
	Gryllones; Orthoptères; Orthopteroid Orders; Orthopteroidea; Orthopterodea; Paurometabola; Polyneopterata; Plecopterodea;

The cohort Polyneoptera is one of the major groups of winged insects, comprising the Orthoptera (grasshoppers, crickets, etc.) and all other neopteran insects believed to be more closely related to Orthoptera than to any other insect orders. They were formerly grouped together with the Palaeoptera and Paraneoptera as the Hemimetabola or Exopterygota on the grounds that they have no metamorphosis, the wings gradually developing externally throughout the nymphal stages.^[2] Many members of the group have leathery forewings (tegmina) and hindwings with an enlarged anal field (vannus).

^ Martynov, A. V. (1923). "О двух основных типах крыльев насекомых и их значении для общей классификаци насекомых" [On the two main types of insect wings and their significance for the general classification of insects]. Proceedings of the I All-Russian Congress of Zoologists, Anatomists and Histologists in Petrograd on 15–21 December 1922: 88–89.
^ Entomology Endopterygota. Royal Entomological Society. Retrieved 29 September 2020.

[1] Martynov, A. V. (1923). "О двух основных типах крыльев насекомых и их значении для общей классификаци насекомых" [On the two main types of insect wings and their significance for the general classification of insects]. Proceedings of the I All-Russian Congress of Zoologists, Anatomists and Histologists in Petrograd on 15–21 December 1922: 88–89.

[2] Entomology Endopterygota. Royal Entomological Society. Retrieved 29 September 2020.

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