Orthopteroids are insects which historically would have been included in the order Orthoptera and now may be placed in the

Polyneoptera The cohort Polyneoptera is a proposed taxonomic ranking for the Orthoptera (grasshoppers, crickets, etc.) and all other Neopteran insects believed to be more closely related to Orthoptera than to any other insect orders. These winged insects, no ...

. When

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ...

started applying

binomial names In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

to animals in the

10th edition 1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. ...

of his '' Systema Naturae'' in 1758, there were few animals included in the scheme, and consequently few groups. As more and more new species were discovered and differences recognised, the original groups proposed by Linnaeus were split up. Originally all orthopteroid insects were in the genus ''

Gryllus ''Gryllus'' is a genus of field cricket (Orthoptera, Gryllidae, Gryllinae). Members of the genus are typically 15–31 mm long and darkly coloured. The type species is ''Gryllus campestris'' L.: the European field cricket. Until the mid- ...

'', this genus now contains a group of closely related

crickets Crickets are orthopteran insects which are related to bush crickets, and, more distantly, to grasshoppers. In older literature, such as Imms,Imms AD, rev. Richards OW & Davies RG (1970) ''A General Textbook of Entomology'' 9th Ed. Methuen 8 ...

. In the scheme used by Linnaeus the genus contained

, grasshoppers,

locust Locusts (derived from the Vulgar Latin ''locusta'', meaning grasshopper) are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstanc ...

s, katydids / bush crickets (

Tettigoniidae Insects in the family Tettigoniidae are commonly called katydids (especially in North America), or bush crickets. They have previously been known as "long-horned grasshoppers". More than 8,000 species are known. Part of the suborder Ensifera, ...

), stick insects, and praying mantises. These groups, along with the

cockroach Cockroaches (or roaches) are a Paraphyly, paraphyletic group of insects belonging to Blattodea, containing all members of the group except termites. About 30 cockroach species out of 4,600 are associated with human habitats. Some species are we ...

es, which Linnaeus did treat differently, are all orthopteroid insects.Nichols, S.W. (1989)''The Torre-Bueno Glossary of Entomology''. New York Entomological Society, New York. The newly discovered order Mantophasmatodea is also an orthopteroid order.

The orthopteroid orders

*Blattodea:

es *Dermaptera:

earwig Earwigs make up the insect order Dermaptera. With about 2,000 species in 12 families, they are one of the smaller insect orders. Earwigs have characteristic cerci, a pair of forcep-like pincers on their abdomen, and membranous wings folde ...

s *

Grylloblattodea Grylloblattidae, commonly known as the icebugs, or ice crawlers, is a family of extremophile (psychrophile) and wingless insects that live in the cold on top of mountains and the edges of glaciers. They belong, along with Mantophasmatidae (rock c ...

: a small order, they look like a cross between cockroaches and crickets *

Mantodea Mantises are an order (Mantodea) of insects that contains over 2,400 species in about 460 genera in 33 families. The largest family is the Mantidae ("mantids"). Mantises are distributed worldwide in temperate and tropical habitats. They ha ...

: praying mantises * Mantophasmatodea: mantophasmids – a small order only discovered in 2002 * Orthoptera:

, grasshoppers,

s and katydids / bush crickets (

) * Phasmatodea: stick insects and

leaf insect The family Phylliidae (often misspelled Phyllidae) contains the Extant taxon, extant true leaf insects or walking leaves, which include some of the most remarkably camouflaged leaf mimicry, mimics (mimesis) in the entire animal kingdom. They occu ...

References

Insect taxonomy {{insect-stub