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The calling song of a field cricket. In 1975, Dr. William H. Cade discovered that the parasitic tachinid fly Ormia ochracea is attracted to the song of the cricket, and uses it to locate the male to deposit her larvae on him. It was the first known example of a natural enemy that locates its host or prey using the mating signal. [10]
Like most cricket species, Teleogryllus oceanicus males produce a calling song to attract potential female mates. Crickets produce the sound of their calls using a "file-scraper" system where, as the male opens and closes its wings, a plectrum (scraper) located on the posterior side of the left wing is rubbed against a filed vein located on the right wing. [5]
Unlike House crickets, which can adapt themselves to indoor conditions, populations of field crickets living in human structures and buildings and without access to warm moist soil for depositing their eggs tend to die out within a few months. Consequently, field crickets in temperate regions exhibit diapause. The calling song of a field cricket
Gryllus bimaculatus is a species of cricket in the subfamily Gryllinae.Most commonly known as the two-spotted cricket, [2] it has also been called the "African" or "Mediterranean field cricket", although its recorded distribution also includes much of Asia, including China and Indochina through to Borneo. [2]
Gryllus integer has a unique song known as a rapid thrill., [3] which is produced by tegminal (forewing) stridulation. [2] [4] These displaying male crickets prefer to call from warmer sites and it has been found that their micro-habitat choice based on temperature can influence their mating calls. [5]
Wētā is a loanword, from the Māori-language word wētā, which refers to this whole group of large insects; some types of wētā have a specific Māori name. [2] In New Zealand English, it is spelled either "weta" or "wētā", although the form with macrons is increasingly common in formal writing, as the Māori word weta (without macrons) instead means "filth or excrement". [3]
Gryllus pennsylvanicus is known as the fall field cricket. G. pennsylvanicus is common in southern Ontario, is widespread across much of North America [3] [4] and can be found even into parts of northern Mexico. It tends to be absent in most of the southwestern United States including southern California.
Gryllus campestris, the European field cricket or simply the field cricket in the British Isles, [2] is the type species of crickets in its genus and tribe Gryllini. These flightless dark colored insects are comparatively large; the males range from 19 to 23 mm and the females from 17 to 22 mm.