Tanna japonensis japonensis (Distant, 1892) is a cicada found in Japan. There is another subspecies without a subspecies name (see below).
SubTribe: Leptopsaltriina (which means slender harp player in Greek)
SubSpecies: Tanna japonensis japonensis (Distant, 1892)
SubSpecies: Tanna japonensis var. ______ Ishihara, 1939
Tanna genus description by W. L. Distant in Genera Insectorum, 1913:
Characters. — Head (including eyes) narrower than base of mesonotum and about as long as space between eyes; lateral margins of pronotum angularly sinuate, but not prominently toothed ; abdomen much longer than space between apex of head and base of cruciform elevation; tympana covered ; opercula small, not or scarcely extending beyond base of abdomen; rostrum reaching the posterior coxae; tegmina and wings hyaline. Closely allied to Leptopsaltria, from which it differs by only having a lateral tubercle on the second and not on the third ventral segment, in other respects resembling the genus Pomponia.
The illustration and genus description comes from the journal Genera Insectorum, and a specific article from 1913 by W. L. Distant titled Homoptera. Fam. Cicadidae, Subfam, Cicadinae. Read it on the Biodiversity Heritage Library website.
Cicada season in Japan, like North America, seems to be best from June to September, peaking in August. Different cicada species emerge at different times of the year, but the majority of them are active during the summer.
Cicadas are very popular in Japan, and they find their way into pop culture (Anime, live action kids shows like Ultraman). This photo features a cicada toy when spun, makes a sound, some cicada clicker toys, a plush Oncotympana, a Seminingen (bad guy from Ultraman), and Yotsuba a green-haired girl who has caught a cicada (Lyristes japonicus perhaps):
Cicada News & Photos
The best place, I’ve found, to keep track of which cicadas are out in Japan is Twitter. You can search Twitter yourself for セミ and you’ll find many results — most Tweets are references to pop culture, but occasional photos and actual information about actual cicadas.
These are many of the Twitter feeds I follow. You don’t need to belong to Twitter to view their feeds, but it’s more fun if you join.