170,000-Year-Old Cicada Adult

170,000-Year Magicicada Adult (17万年ゼミ成虫, 17 Man-nen Zemi Seichū) was a large mysterious being that attacked Z-City.

Appearance
The Magicicada Adult is an extremely massive cicada, easily able to cast a large shadow over a city. Located at the center of its head is the face of a man.

Recollection Of A Summer
170,000-Year Magicicada Adult attacks Z-City damaging many buildings. Saitama then appears before it and declares with a smile that summer has arrived.

Abilities & Powers
Since it is the grown up version of the 170,000-Year Magicicada Nymph, it is presumably much more powerful.