FIGURE 4 in Taxonomic, bioacoustic and faunistic data on a collection of Tettigonioidea from Eastern Congo (Insecta: Orthoptera)

FIGURE 4. Frequency spectra of calling songs. In Horatosphaga leggei, the black line respresents the evaluation of a 50 ms part of the song during the production of microsyllables A, the solid part that of a 50 ms part during the production of macrosyllables (same scale).