Sound production in Parapellopedon instabilis (Rehn, 1906) (Orthoptera: Gomphocerinae)

The sounds produced by Parapellopedon instabilis (Rehn, 1906), are described for the first time on the basis of recordings made, in captivity, with an analogical tape recorder. The signals were digitized in the laboratory and analyzed using a software. Three types of song are described: the male calling song, typical of the gomphocerinae species, the female’s agreement song, less organized temporally and unusually loud for a gomphocerinae species, and disturbance songs among males and among females, which follow the typical structure of these signals in the subfamily. Oscillograms and frequency spectra of all songs are given. The stridulatory file of both sexes, male and female, are described.