Bullacris membracioides (Walker, 1870)

Male B. membracioides produce an advertisement call consisting of five short introductory syllables followed by a final, longer, resonant syllable with a carrier frequency of approximately 1.7 kHz (Figure 1). The call of B. intermedia (Figure 1) is very similar to that of B. membracioides, but has an additional short syllable at the start of the call and a slightly higher carrier frequency of 1.8 kHz. B. serrata produces a notably shorter call, with only two very brief introductory syllables preceding the final resonant syllable, and a carrier frequency of around 2.0 kHz (Figure 1). Females of B. membracioides reply to male songs with a broadband signal of between 4 and 10 kHz (Figure 1), with the number of syllables produced per response varying from one to ten. [1]

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