Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Auchenorrhyncha
Infraorder: Cicadomorpha
Superfamily: Cicadoidea
Family: Cicadidae
Genus: Kikihia
Species: Kikihia balena
The sound of the Kikihia balena (Thanks to the Cicada Central)
The adult male cicada possesses two ribbed membranes called tymbals, one on each side of its first abdominal segment. By contracting the tymbal muscle, the cicada buckles the membrane inward, producing a loud click. As the membrane snaps back, it clicks again. The two tymbals click alternately. Air sacs in the hollow abdominal cavity amplify the clicking sounds. The vibration travels through the body to the tympani, which amplify the sound further.
Photos below of a female Kikihia balena photographed in New Plymouth December.
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/