Gryllus cayensis

Walker, 2001

keys wood cricket, South Florida taciturn wood cricket

Gryllus cayensis is a field cricket to southern Florida, described by Walker in 2001. It is distinguished from by its relatively quiet calling song, earning it the designation 'taciturn wood cricket.' The species is now considered extirpated from its type locality in the Florida Keys, though it may persist elsewhere in South Florida. The species hybridizes with related Gryllus species where ranges overlap.

Pronunciation

How to pronounce Gryllus cayensis: /ˈɡrɪl.ləs kaɪˈɛn.sɪs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from other Gryllus field crickets by its reduced calling song amplitude and frequency. As a 'taciturn' , males produce noticeably quieter and less frequent chirps than such as Gryllus pennsylvanicus. Diagnostic morphological features for species-level identification require examination of male genitalia and detailed acoustic analysis; field identification based on song characteristics alone is challenging without direct comparison to sympatric species.

Habitat

Woodland and scrub in the Florida Keys and adjacent South Florida mainland; associated with wooded environments typical of 'wood cricket' .

Distribution

to southern Florida; type locality in the Florida Keys. The has been extirpated from the Florida Keys but may persist in mainland South Florida .

Behavior

Males produce calling songs that are notably quieter and less conspicuous than those of related field cricket . The species hybridizes with where overlap.

Human Relevance

Subject of conservation concern due to extirpation from type locality; represents a documented case of regional extinction in an insect .

Similar Taxa

  • Gryllus pennsylvanicusOverlaps in distribution and ; distinguished by loud, frequent calling song versus the quiet 'taciturn' song of G. cayensis
  • Gryllus firmusSympatric in Florida; distinguished by acoustic characteristics and male genital
  • Gryllus bimaculatusSimilar body plan and ; distinguished by geographic range (Mediterranean region) and song characteristics, though used as reference for studies

Sources and further reading