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Gryllus bimaculatus
African.field.cricket.arp.jpg
Gryllus bimaculatus
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Suborder: Ensifera
Family: Gryllidae
Genus: Gryllus
Species: Gryllus bimaculatus
Binomial name
Gryllus bimaculatus
De Geer, 1773

Gryllus bimaculatus is one of many cricket species known as the field cricket. Also known as the African or Mediterranean field cricket or as the two-spotted cricket, it can be discriminated from other Gryllus species by the two dot-like marks on the base of its wings.

This species of cricket is popular for use as a food source for insectivorous animals like spiders and reptiles. They are easy to raise and do not require prolonged exposure to cold temperatures in order to complete their life cycle.

Behaviour[edit]

Fighting[edit]

In the wild, male crickets tolerate one another and will fight until there is a winner. The loser usually retreats without serious injury. The fighting method involves opening the mandibles as wide as possible, gripping onto the opponent's mandibles and pushing with the hind legs. There is a strange behavior involved in fighting- this activity seems to trigger its fighting spirit.

Chirping[edit]

Male crickets of this species produce several distinctive chirps, though each sound is made by rubbing the two outer wings together. Loud and steady chirps made throughout the night are to attract females and to warn off other males. Loud fast-fequency chirps are emitted when males encounter one another and are preparing to fight. They are intended to frighten off the rival male. A soft clipping sound is made when a female is known to be nearby. Its purpose is to encourage the female to mate.

Shelter[edit]

These crickets can be found hiding under logs, grasses, and in crevices. They can also dig holes into the ground to create homes for themselves, or live in holes created by other animals. Males are territorial and will fight off other males, but allow any number of females to coexist in the same shelter.

Cannibalism[edit]

This behavior is extremely rare, but females have been observed to cannibalize the male if there is not enough food to eat.

Circadian Rhythm[edit]

In recent studies, Pigment Dispersing Factor has been implicated in the nocturnal rhythms of crickets. by:DR. Centino Ranel

Physiology[edit]

Females have a tubular organ at the rear, known as an ovipositor, which is used to lay eggs into the ground. They lay their eggs into humid soil and the baby crickets hatch in about two weeks.

Economic importance[edit]

Gryllus bimaculatus is the main species used by suppliers of live crickets.


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Gryllus_bimaculatus — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
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24 news items

Entomology Today

Entomology Today
Mon, 22 Dec 2014 09:15:00 -0800

One species, Gryllus bimaculatus, is a European species which is very widespread. Its range covers at least three continents, from Europe to Asia to Africa. It's the standard cricket sold in European pet stores, and has replaced A. domesticus as a ...
 
Bowdoin News
Mon, 10 Nov 2014 05:57:37 -0800

Gryllus bimaculatus, the same species of cricket Horch studies, is a useful model for embryonic research because females can lay over 100 eggs. Ewen-Campen is particularly interested in germ cells (which give rise to eggs and sperm) because he says ...

Bowdoin News

Bowdoin News
Tue, 22 Oct 2013 06:42:48 -0700

Adam Zhang '14 presents on his neuroscience research, "Quantifying Changes in Semaphorin Expression: Adam Zhang '14 presents on his neuroscience research, “Quantifying Changes in Semaphorin Expression after Deafferentation in Gryllus bimaculatus ...

Oxford Mail

Oxford Mail
Thu, 05 Sep 2013 23:04:59 -0700

But Pc Kingham last night confirmed Mr Emlyn-Jones had used traps bought from a pest control company to try to eradicate the population of crickets – gryllus bimaculatus, which are a common food source for pet reptiles. Mr Emlyn-Jones is a warden of SS ...

The Independent

The Independent
Fri, 02 Aug 2013 11:22:29 -0700

Gryllus bimaculatus. It looks like an evil little insect. It is an evil little insect, actually. When there's no other food to be found, the heartless things will waste no time in tucking into their brothers and sisters, going to some length to ...
 
The Independent
Thu, 25 Jul 2013 10:01:38 -0700

With a love of cricket song, I purchased 500 African field crickets (Gryllus bimaculatus) from a reptile-food supplier and released them into my garden. For the past two nights we and our neighbours have been enjoying their delightful chirping. This ...
 
New York Times
Sat, 05 Nov 2011 13:39:11 -0700

Countless members of the Gryllus bimaculatus clan, also known as field crickets, have faced off in the capital's narrow alleys this fall in a uniquely Chinese blood sport whose provenance extends back more than 1,000 years. Nurtured by Tang Dynasty ...
 
Scientific American (blog)
Thu, 22 Dec 2011 07:39:08 -0800

In order to investigate the source of the heightened aggression that results from the winner effect, researchers Jan Rillich and Paul Anthony Stevenson staged “tournaments” of cricket fights, using Mediterranean field crickets (Gryllus bimaculatus ...
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