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Crickets are mainly nocturnal, and are best known for the loud, persistent, chirping song of males trying to attract females, although some species are mute. The singing species have good hearing, via the tympana on the tibiae of the front legs. Crickets often appear as characters in literature.
The tree cricket Oecanthus fultoni. Dolbear's law states the relationship between the air temperature and the rate at which crickets chirp. [1] [2] It was formulated by physicist Amos Dolbear and published in 1897 in an article called "The Cricket as a Thermometer". [3]
Oecanthus fultoni, also known as the snowy tree cricket, [1] or thermometer cricket, [1] is a species of tree cricket from North America. [2] It feeds on leaves but also damages fruit. The chirp of this species is often dubbed onto sound tracks of films and television shows to depict a quiet summer's night.
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The mole cricket lives underground, making burrows and feeding on plant roots, larvae and other insects. It goes to the surface only at night - mostly in the mating season. It can fly too, when changing territory or when females are searching for males. Males call females by chirping. This cricket is considered a pest in some regions.
The chirp (or trill) of a tree cricket is long and continuous and can sometimes be mistaken for the call of a cicada or certain species of frogs. While male tree crickets have the ability to call, females lack the ability. [5] This call is then received by other tree crickets in the area through a system called sender-receiver matching.
Ormia ochracea is a small yellow nocturnal fly in the family Tachinidae. [2] It is notable for its parasitism of crickets and its exceptionally acute directional hearing. The female is attracted to the song of the male cricket and deposits larvae on or around him, as was discovered in 1975 by the zoologist William H. Cade.
Gryllinae, or field crickets, are a subfamily of insects in the order Orthoptera and the family Gryllidae. They hatch in spring, and the young crickets (called nymphs) eat and grow rapidly. They shed their skin eight or more times before they become adults. Field crickets eat a broad range of food: seeds, plants, or insects (dead or alive).