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Oecanthus fultoni's common name of the thermometer cricket is derived from a relationship between the rate of its chirps and the temperature. An estimate of the temperature in Fahrenheit can be made by adding 40 to the number of chirps made in 15 seconds. [3] Before 1960, the name Oecanthus niveus was wrongly applied to this species. [4]
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Most cave crickets have very large hind legs with "drumstick-shaped" femora and equally long, thin tibiae, and long, slender antennae. The antennae arise closely and next to each other on the head. They are brownish in color and rather humpbacked in appearance, always wingless, and up to 5 cm (2.0 in) long in body and 10 cm (3.9 in) for the legs.
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Velia caprai, known as the water cricket, is a species of aquatic bug found in Europe. It grows to a length of 8.5 mm (0.33 in) and is stouter than pond skaters of the family Gerridae . It is distasteful to predatory fish, engages in kleptoparasitism , and can travel at twice its normal speed by spitting on the water surface.
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]
Oecanthus niveus, known generally as the narrow-winged tree cricket or snowy tree cricket, is a species of tree cricket in the family Gryllidae, which includes all crickets. First noted by Swedish Entomologist Charles de Geer in 1773 by a Pennsylvanian Specimen, it is found primarily in Eastern North America south of Canada, and also in the ...
“Then we can go almost 10, 15 years without hardly seeing any,” Knight said of the crickets. “From about 2008, we hardly had any crickets, until about 2019.