Photo 5. Singing structures of the male cicada. Left - Flap-like opercula on the ventral surface of the first abdominal segment; right - Operculum removed to expose the white membrane and sound-producing timbal.

Photo 5.
Singing structures of the male cicada. Left – Flap-like opercula on the ventral surface of the first abdominal segment; right – Operculum removed to expose the white membrane and sound-producing timbal.