The authors showed in the article the results on investigation of male Nezara viridula responsiveness to natural and artificial vibratory signals of the conspecific females. Males recognized female calling song of conspecifics at the basis of their time and frequency parameters and responded optimal to their values typical for conspecific signals. Recognition is achieved at the basis of the function of two temporal filters tuned to signal duration and interval between them. Males respond best to signal frequencies characteristic for the whole group being tuned to mechanical proiperties of plants as their tranbsmission medium.
COBISS.SI-ID: 2397263
Predatory stink bugs Picromerus bidens (Pentatomidae: Asopinae) produce vibratory communication signals by abdomen vibration and tremulation. Signals produced by abdomen vibration show frequency characteristics typical for other investigated pentatomide species with the dominat peak around 100 Hz while tremulatory signals are broad-banded with peaks up to 4 kHz. Broad vibratory signals repertoar potentially replaces the lack of aggregation pheromone typical for relative species of this subfamily.
COBISS.SI-ID: 2350159
The authors compared search behaviour in two hemipteran species using vibrational communication. The results demonstrated that the onset of searching was faster in the leafhopper Aphrodes makarovi and that changes of female replies temporal parameters had negative effect on conspecific male searching behaviour. Males of A. makarovi also failed to locate the source of female replies if they were outside the species time characteritics. Nezara viridula searching males on the other hand successfully located the source of female song with parameters outside the species specific values.
COBISS.SI-ID: 2423631