|Publication Type:||Journal Article|
|Year of Publication:||2001|
|Journal:||The Florida Entomologist|
|Keywords:||calling song, Gryllus cayensis, Gryllus fultoni, Hybridization, phylogeny|
Gryllus cayensis, new species, formerly occurred in tropical hammocks in the Florida Keys but has not been found there since 1972, the initial year of aerial spraying of north Key Largo hammocks for mosquito control. It is now known only from pineland in Everglades National Park. Males of G. cayensis make no ordinary calling songs, but some caged males occasionally produce soft 3-4 pulse chirps with a principal frequency of nearly 11 kHz. Males of its sister species, G. fultoni (Alexander), which occurs in north Florida, call with loud 2-4 pulse chirps with a principal frequency of about 4.5 kHz.