Cardiodactylus sumba
Behaviour:
High speed video observations at 1250 frames per second show that each calling song of C. sumba corresponds to only one FW closure (1 syllable), the gaps within the syllables being made by the jerking movement of the FW closure. At 20.5°C, these mono-syllabic calling songs have the following characteristics: syllable duration = 319 ± 29 ms; syllable period = 3.2 ± 0.8 s; syllable duty cycle = 9.9 %. The power spectrum consists of a broad band dominating at 11.74 ± 0.20 kHz with no harmonic structure, suggesting that the system is not sustained as usually in crickets. [1]