Cicadas of Thailand Volume 2: Taxonomy and Sonic Ethology by Michel Boulard is available now via Siri Scientific Press.
A comprehensive 436 page volume from the leading world expert representing 13 years of work on taxonomy (including several newly described species) and sonic ethology, with supporting audio tracks
I ordered a copy already.
Cicadas of Thailand Volume 1 was a great resource for the cicadas of Thailand and South-East Asia in general (many Asian species are not endemic, so you’ll find them in many countries). I imagine that Volume 2 will be just as amazing.
Here’s his first book Cicadas of Thailand: General and Particular Characteristics. Volume 1: