Main or calling songs of cicadasMeimuna tavoyana, Platylomia nagarasingna, Platylomiasp. andPuranaaff.tigrinafrom Thailand are described and compared with some previously investigated species. ForM. tavoyanaa repeated tonal frequency modulated pattern is typical in addition to the broad band buzzing sound. Both closely related chorusing species ofPlatylomiashow broad band acoustic emissions with some degree of frequency band modulation. The song ofPuranaaff.tigrinafrom S. Thailand is the most complex, with sharply tuned spectral components (at 2300 and 9400 Hz) and rich amplitude modulation patterns.