Synchronous, Alternating, and Phase-Locked Stridulation by a Tropical Katydid

In the field the chirps of neighboring Mecopoda sp. (Orthoptera, Tettigoniidae, and Mecopodinae)malesarenormallysynchronized,butbetweenmoredistantindividuals the chirps are either synchronous or regularly alternating. The phase response to single-stimulus chirps depends on both the phase and the intensity of the stimulus. IterationofthePoincaremapofthephaseresponsepredictsavarietyofphase-locked synchronizationregimes,incudingperiod-doublingbifurcations,incloseagreement with experimental observations. The versatile acoustic behavior of Mecopoda encom- passesmostofthephenomenafoundinothersynchronizinginsectsandthusprovides ageneralmodelofinsectsynchronizationbehavio