Gryllus Bryanti
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''Gryllus bryanti'' is a species of
cricket Cricket is a bat-and-ball game played between two teams of eleven players on a field at the centre of which is a pitch with a wicket at each end, each comprising two bails balanced on three stumps. The batting side scores runs by striki ...
in the subfamily
Gryllinae 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 (molt) eight or more times before ...
. ''G. bryanti'' lives on islands in the
Caribbean Sea The Caribbean Sea ( es, Mar Caribe; french: Mer des Caraïbes; ht, Lanmè Karayib; jam, Kiaribiyan Sii; nl, Caraïbische Zee; pap, Laman Karibe) is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico ...
, including Eleuthera Island and
Andros Island Andros Island is an archipelago within the Bahamas, the largest of the Bahamian Islands. Politically considered a single island, Andros in total has an area greater than all the other 700 Bahamian islands combined. The land area of Andros consis ...
in
the Bahamas The Bahamas (), officially the Commonwealth of The Bahamas, is an island country within the Lucayan Archipelago of the West Indies in the Atlantic Ocean, North Atlantic. It takes up 97% of the Lucayan Archipelago's land area and is home to ...
.Otte, D., and Pérez-Gelabert, D.E. 2009. Caribbean Crickets. Orthopterists’ Society, 792 pages. , OCLC: 423481281


Morphology

''Gryllus bryanti'' is among the larger species of
field cricket Field cricket may refer to: * Insect species ** In the British Isles a "field cricket" is the insect species ''Gryllus campestris''; ** in North America it may refer to various species in the genus ''Gryllus''; ** elsewhere, the term may be used for ...
s. Body colour is dark brown with reddish brown around the head, thorax and legs (see images of male and female on this page).


Habitat

Typical of many field crickets, ''G. bryanti'' can be found living in cracks or burrows in the ground in disturbed areas (e.g. near roads) and around human habitations.


Song production

Like most gryllids, males produce song by tegminal (forewing)
stridulation Stridulation is the act of producing sound by rubbing together certain body parts. This behavior is mostly associated with insects, but other animals are known to do this as well, such as a number of species of fish, snakes and spiders. The mech ...
.Loher, W. and Dambach, M. 1989. Reproductive behavior. I
Cricket Behavior and Neurobiology
(ed. Huber, F., Moore, T. E., and Loher, W.), pp. 43-82. Ithaca, NY: Cornell University Press.,
Male ''G. bryanti'' calling song is distinct from other species of ''
Gryllus ''Gryllus'' is a genus of field cricket (Orthoptera, Gryllidae, Gryllinae). Members of the genus are typically 15–31 mm long and darkly coloured. The type species is ''Gryllus campestris'' L.: the European field cricket. Until the mid- ...
'' in that each chirp consists of only a single pulse (wingstroke) instead of multiple pulses (see image of calling song on this page). Courtship song contains high frequency ticks interspersed amongst lower frequency pulses (see image of courtship song on this page).


References

bryanti Insects described in 1905 Insects of the Caribbean {{gryllidae-stub