Orthopteroid

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Orthopteroids are insects which historically would have been included in the order Orthoptera and now may be placed in the Polyneoptera . When Carl Linnaeus started applying binomial names to animals in the 10th edition of his Systema Naturae in 1758, [1] 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 , this genus now contains a group of closely related crickets. In the scheme used by Linnaeus the genus contained crickets, grasshoppers, locusts, katydids / bush crickets (Tettigoniidae), stick insects, and praying mantises. These groups, along with the cockroaches, which Linnaeus did treat differently, are all orthopteroid insects. [2] The newly discovered order Mantophasmatodea is also an orthopteroid order.

The orthopteroid orders

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Tettigoniidae Family of insects

Insects in the family Tettigoniidae are commonly called katydids, or bush crickets. They have previously been known as "long-horned grasshoppers". More than 6,400 species are known. Part of the suborder Ensifera, the Tettigoniidae are the only extant (living) family in the superfamily Tettigonioidea.

Orthoptera Order of insects including grasshoppers, crickets, wētā and locusts

Orthoptera is an order of insects that comprises the grasshoppers, locusts and crickets, including closely related insects such as the katydids and wētā. The order is subdivided into two suborders: Caelifera – grasshoppers, locusts and close relatives; and Ensifera – crickets and close relatives.

Gryllidae Family of crickets

The family Gryllidae contains the subfamilies and genera which entomologists now term true crickets. They belong to the Orthopteran subfamily Ensifera, having long, whip-like antennae and has been reduced in terms of the older literature, with taxa such as the spider-crickets and allies, sword-tail crickets, wood or ground crickets and scaly crickets elevated to family level. The type genus is Gryllus and the first use of the family name "Gryllidae" was by Walker.

Hemimetabolism

Hemimetabolism or hemimetaboly, also called incomplete metamorphosis and paurometabolism, is the mode of development of certain insects that includes three distinct stages: the egg, nymph, and the adult stage, or imago. These groups go through gradual changes; there is no pupal stage. The nymph often has a thin exoskeleton and resembles the adult stage but lacks wings and functional reproductive organs. The hemimetabolous insects differ from ametabolous taxa in that the one and only adult instar undergoes no further moulting.

Ensifera Suborder of cricket-like animals

Ensifera is a suborder of insects that includes the various types of crickets and their allies including: true crickets, camel crickets, bush crickets or katydids, grigs, weta and Cooloola monsters. This and the suborder Caelifera make up the order Orthoptera. Ensifera is believed to be a more ancient group than Caelifera, with its origins in the Carboniferous period, the split having occurred at the end of the Permian period. Unlike the Caelifera, the Ensifera contain numerous members that are partially carnivorous, feeding on other insects, as well as plants.

Tegmen

A tegmen designates the modified leathery front wing on an insect particularly in the orders Dermaptera (earwigs), Orthoptera, Mantodea, Phasmatodea and Blattodea (cockroaches).

Daniel Otte is a noted behavior ecologist, a world expert on crickets and grasshoppers and a prominent scientific illustrator. He has made significant contributions to evolutionary biology. He is curator and chairman of the Department of Entomology at the Academy of Natural Sciences in Philadelphia.

<i>Saga hellenica</i> Species of cricket

Saga hellenica is a large species of bush cricket or katydid in the family Tettigoniidae. It is endemic to the Balkans, living in Albania, North Macedonia, Greece and in the past also in western Bulgaria such as scrub and shrub spiny bushes.

<i>Centuria Insectorum</i>

Centuria Insectorum is a 1763 taxonomic work by Carl Linnaeus, and defended as a thesis by Boas Johansson; which of the two men should be credited with its authorship has been the subject of some controversy. It includes descriptions of 102 new insect and crustacean species that had been sent to Linnaeus from British America, Suriname, Java and other locations. Most of the new names included in Centuria Insectorum are still in use, although a few have been sunk into synonymy, and one was the result of a hoax: a common brimstone butterfly with spots painted on was described as the new "species" Papilio ecclipsis.

<i>Oedipoda caerulescens</i> Species of grasshopper

The blue-winged grasshopper, Oedipoda caerulescens, is a grasshopper in the genus Oedipoda.

<i>Eugaster spinulosa</i> Species of cricket-like animal

Eugaster spinulosa is a species of bush-cricket from Morocco.

<i>Tettigonia</i> Genus of cricket-like animals

Tettigonia is the type genus of bush crickets belonging to the subfamily Tettigoniinae. The scientific name Tettigonia is onomatopoeic and derives from the Greek τεττιξ, meaning cicada.

Panoploscelis is a genus of very large insects belonging to the true katydid tribe Eucocconotini, which is a subfamily of the katydids. Like the other members of the suborder Ensifera, Panoploscelis are part of the insect order Orthoptera, which also contains crickets, grasshoppers and locusts. Members of this genus are among the largest katydids of the Neotropics.

<i>Sathrophyllia</i> Genus of cricket-like animals

Sathrophyllia is a genus of Asian bush crickets or katydids in the subfamily Pseudophyllinae and tribe Cymatomerini. They are usually found on the branches of bushes or trees where they sit close to a branch and spread out their forelegs and antennae along the branch and hold themselves close to the surface with their middle pair of legs. Some species like S. rugosa have cryptic colouration that matches the bark making them very hard to spot. Further east, the genus Olcinia also bears a close resemblance, however Sathrophyllia has a relatively smooth margin to the forewing unlike that of Olcinia.

Polyneoptera Group of insects

The cohort Polyneoptera is a proposed taxonomic ranking for the Orthoptera and all other Neopteran insects believed to be more closely related to Orthoptera than to any other insect orders. These winged insects, now in the Paraneoptera, were formerly grouped as the Hemimetabola or Exopterygota on the grounds that they have no metamorphosis, the wings gradually developing externally throughout the nymphal stages.

Scudderia cuneata Species of cricket-like animal

Scudderia cuneata is a species in the family Tettigoniidae ("katydids"), in the order Orthoptera. A common name for Scudderia cuneata is "southeastern bush katydid". Scudderia cuneata is found in North America.

Scudderia pistillata Species of cricket-like animal

Scudderia pistillata is a species in the family Tettigoniidae ("katydids"), in the order Orthoptera. A common name for Scudderia pistillata is "broad-winged bush katydid". Scudderia pistillata is found in North America.

Insara is a genus known as "western bush katydids": characteristic of the tribe Insarini and placed in the family Tettigoniidae, subfamily Phaneropterinae. There are about 6 described species in Insara.

<i>Stilpnochlora</i> Genus of cricket-like animals

Stilpnochlora is a genus of phaneropterine katydids in the family Tettigoniidae. There are about 15 described species in Stilpnochlora.

References

  1. Carl Linnaeus (1758). Systema Naturae (10th ed.). Stockholm.
  2. Nichols, S.W. (1989)The Torre-Bueno Glossary of Entomology. New York Entomological Society, New York.