Fig. 2 in New Stridulatory Structures in a Tiger Beetle (Coleoptera: Carabidae: Cicindelinae): Morphology and Sound Characterization

Fig. 2. Sound signals of Oxycheila tristis. a) comparison between the oscillograms obtained for a female and a male; b) details of oscillogram and respective sonograms showing the frequency modulation, at the beginning (1) and in the middle (2) of a syllable produced by a male; c) comparison between the averaged spectra of the sound signals produced by four males and three females (error bars represent range).