One-Punch Man Wiki
One-Punch Man Wiki

170,000-Year-Old Cicada Larva (17万年ゼミ幼虫, 17 Man-nen Zemi Yōchū, Viz: 170,000-Year-Old Cicada Nymph) was a Mysterious Being that attacked Z-City at some point during Saitama's training years. It was killed by Saitama.[2]


The Cicada Nymph was a massive cicada-like creature. It had the face of a child at the center of its head.


It was supposed to be a larva underground during the season it popped out.[1]

Appearances in Other Media[]



During Saitama's training years, the Cicada Nymph attacks Z-City and defeats two C-Class heroes, Grad School Graduate and Red Muffler, and the B-Class hero Darkness Blade with ease while the rest of the population barricades itself within Shelter Nr. 7. Sometime later two unnamed A-Class heroes try to fight it, but are also defeated, which causes the Hero Association to declare it as a Demon-level threat and they decide to send one of their newly formed subjugation squads to finish it off. Saitama, while running around in search of a bathroom, runs into the Nymph who suddenly attacks him, but falls victim to Saitama's punch.

Abilities and Powers[]

It defeated two A-Class heroes which prompted the Hero Association to deem it as a threat with a disaster level of Demon.

Physical Abilities[]

170,000-Year-Old Cicada Larva smashing through buildings

Enhanced Strength: The 170,000-Year Cicada Nymph was a powerful Mysterious Being. It had enough strength to defeat multiple heroes, including two A-Class ones.

Enhanced Durability: The 170,000-Year Cicada Nymph was very durable. It was able to smash through buildings without visible damage.

Transformation: It can be inferred from its name that over some period of time, a Cicada Nymph will grow into a 170,000-Year-Old Cicada Adult.


  1. 1.0 1.1 1.2 1.3 One-Punch Man Encyclopedia; One-Punch Man: Hero Encyclopedia, page 183
  2. One-Punch Man Omake; Summer


Mysterious Beings
Dragon (or higher) Boros Orochi *
Demon 170,000-Year-Old Cicada Larva 170,000-Year-Old Cicada Adult Armored GorillaAwakened Cockroach Baquma Beast King Bug God Building Booper Deep Sea King Demonic Fan Devil Long Hair *Do-S *Face Ripper Fist Fight Djinn Free Hugger G4 G5 Game-Berus Giant Crow Grizzly Nyah Hundred-Eyes Octopus Jumping Spider Mosquito Girl *Rafflesidon Rhino Wrestler Royal Ripper Scaledon Senior Centipede Showerhead Sky King Subterranean King Super Mouse The Great Food Tub The Three Crows Unihorn Vampire (Pureblood) 
Wolf Himawari Hotdog Messenger of the Seafolk Piggy Bancon Tongue Stretcher
Less than Wolf
Unknown Alien Seer *Ancient King Autumn Phantom Red Golden-ringed Dragonfly *Benpatsu *Choze Dark Matter Gunner Eagle Enamel Evil Eggs Evil Eye Eyesight Falcon Fish of DarknessGale Gigakigan Goddess Glasses Golden SpermGyoffrey Hamukichi *Haragiri Hawk Hellfire Junior Centipede *Kite ManakoRosie Raptora *RepteraSuppon Sword Devil Executioner Venus Mantrap Volten *