Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mechanism is typically that of one structure with a well-defined lip, ridge, or nodules being moved across a finely-ridged surface or vice versa, and vibrating as it does so, like the dragging of a phonograph needle across a vinyl record. Sometimes it is the structure bearing the file which resonates to produce the sound, but in other cases it is the structure bearing the scraper, with both variants possible in related groups. Common onomatopoeic words for the sounds produced by stridulation include chirp and chirrup.
Mole crickets are members of the insect family Gryllotalpidae, in the order Orthoptera. Mole crickets are cylindrical-bodied, fossorial insects about 3–5 cm (1.2–2.0 in) long as adults, with small eyes and shovel-like fore limbs highly developed for burrowing. They are present in many parts of the world and where they have arrived in new regions, may become agricultural pests.
Gryllinae, or field crickets, are a subfamily of insects in the order Orthoptera and the family Gryllidae.
Chorthippus jutlandica, the Jutland bow-winged grasshopper, is a species of grasshopper in the subfamily Gomphocerinae. It is endemic to sparsely vegetated coastal sand dunes in an area covering only 87 km2 (34 sq mi) between Blåvandshuk and Hvide Sande in western Jutland, Denmark, but it is common and not considered to be under any threat.
Nepenthes mollis, or the velvet pitcher-plant, is a tropical pitcher plant species natives to Kalimantan, Borneo. It used to be known only from a single dried herbarium specimen and is the sole recognised species in the genus Nepenthes of which the pitchers are unknown. In 2019 Global Wildlife Conservation announced the rediscovery of the species.
The speckled bush-cricket is a flightless species of bush-cricket belonging to the family Tettigoniidae. The species was originally described as Locusta punctatissima in 1792.
Chorthippus is a large genus of acridid grasshoppers with around 230 described species. The genus may be subdivided into subgenera including: Altichorthippus, Chorthippus and Glyptobothrus, with other species not placed.
Chorthippus brunneus, also known as the common field grasshopper, is a species of grasshopper of the subfamily Gomphocerinae. The species is common and widespread in the Western Palearctic, and the IUCN lists it as Least Concern.
Pseudochorthippus parallelus, the meadow grasshopper, is a common species of grasshopper in the tribe Gomphocerini. It is found in non-arid grasslands throughout the well vegetated areas of Europe and some adjoining areas of Asia. It is a well-studied organism in the discipline of evolutionary biology and was an early and important model system for the study of European phylogeography.
Gryllotalpa gryllotalpa, commonly known as the European mole cricket, is widespread in Europe and has been introduced to the eastern United States. The scientific name is 'mole cricket', derived from the Latin 'gryllus' (cricket); and 'talpa' (mole), because of the fine dense fur which covers it and its subterranean habits, and because of the mole-like forelegs adapted for digging, a good example of convergent evolution.
Tettigonia viridissima, the great green bush-cricket, is a large species of bush-cricket belonging to the subfamily Tettigoniinae.
Euchorthippus declivus, the Jersey grasshopper or sharp-tailed grasshopper, is a species of short-horned grasshoppers belonging to the family Acrididae, subfamily Gomphocerinae.
Omocestus rufipes, the woodland grasshopper, is a species of short-horned grasshopper belonging to subfamily Gomphocerinae. The Latin species name rufipes means red-footed, from rufus (red) + pes (foot), with reference to the color of the legs.
Taeniopoda eques, the western horse lubber grasshopper, is a relatively large grasshopper species of the family Romaleidae found in arid and semi-arid parts of southwestern United States to central and southwestern Mexico. Most populations are identifiable by their shiny black bodies with contrasting yellow markings, but some adults are mostly yellowish, orangish or greenish. The species is unique in using its black coloration to thermoregulate and in being chemically defended. The aposematic coloration warns vertebrate predators of its unpalatability and allows the grasshopper to roost conspicuously upon shrubs.
Omocestus viridulus, known in the British Isles as the common green grasshopper, is a Palearctic species of grasshopper in the subfamily Gomphocerinae.
Conocephalus fuscus, the long-winged conehead, is a member of the family Tettigoniidae, the bush-crickets and is distributed through much of Europe and temperate Asia. This bush-cricket is native to the British Isles where it may confused with the short-winged conehead. These two species are phenotypically similar; however, the distinguishing factor between the two is the fully developed set of wings the long-winged conehead possesses that allows for flight. In the short-winged coneheads the hind wings are shorter than the abdomen, causing the wings to be vestigial and the species is incapable of flight. For this reason it is hard to discriminate between the two species during the early stages of their life cycle before the wings have fully developed. The colouration of the conehead is typically a grass green with a distinctive brown stripe down its back, though there are some brown phenotypes.
Chorthippus albomarginatus, the lesser marsh grasshopper, is a common grasshopper of European grassland both damp-marshy and dry, including salt-marsh and coastal habitats.
Oecanthus pellucens, common name Italian tree cricket, is a species of tree crickets belonging to the family Gryllidae, subfamily Oecanthinae.
Psophus is a monotypic genus of grasshopper of the family Acrididae, subfamily Oedipodinae and in the tribe Locustini. The one species in the genus is Psophus stridulus, commonly known as the rattle grasshopper.
Female Chorthippus biguttulus
Male Chorthippus biguttulus
In Tokyo, Japan. They can appear reddish-brown depending on their environment
