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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.
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25 news items

Tech Times

Tech Times
Sun, 15 Mar 2015 07:06:15 -0700

For the new study published in the journal Science Advances on March 13, Paul Stevenson, from the Leipzig University, and Jan Rillich, from the Free University of Berlin in Germany, treated Mediterranean field crickets (Gryllus bimaculatus) with nitric ...

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 ...

All about feed

All about feed
Wed, 07 May 2014 03:58:40 -0700

Kreca is a leading insect farm in Europe with in-house knowledge of breeding and rearing 13 different species of insects. The company was established in 1978 and has since been successfully operating throughout Europe. AllAboutFeed visited the ...

Bowdoin News

Bowdoin News
Tue, 22 Oct 2013 06:41:15 -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 ...

Telegraph.co.uk

Telegraph.co.uk
Fri, 06 Sep 2013 07:20:00 -0700

"They might carry diseases. Gryllus bimaculatus make loud chirps, but I'm sure Mr Emlyn-Jones can buy CDs with cricket songs on instead." Mr Emlyn-Jones, who is a private maths and science tutor and a church warden, declined to comment on his police ...
 
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 ...
 
Public Radio International PRI
Tue, 07 Feb 2012 07:04:13 -0800

A katydid found in the Amazonian forests (Panacanthus cuspidatus)sings by rubbing its wings together. Sound and image have been slowed down from original. Credit: Fernando Montealegre-Z. This is how the field criket, Gryllus bimaculatus sings by ...
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