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Diolius (ダイオリウス Daioriusu) were insect-like Kaiju that appeared in Ultraman Dyna.

Subtitle: Giant Space Insect (宇宙大昆虫 Uchū Daikonchū)


Ultraman Dyna

Three years prior to the series, Diolius attacked a TPC base that was under construction in Pluto.

Now in 2018, a TPC spaceship Gazelle, was sent to brought several Neo Frontier Jupiter-born children to Earth. Diolius at that time, hanging on an asteroid, detected the Gazelle's signal and made its way to the ship but attacked by its defense system. However, before the monster went away, it had just implanted its larvae on the ship. Super GUTS detected this and to make things worse, if Diolius' egg hatched on Earth, the fluid which came from the egg will vaporize into a poisonous gas that will kill millions of people on Earth in a wide scale. The larvae were released inside the Gazelle and the small insect began to hunt. Normal firepower had no effect and it moved through the halls. When it trapped one of the women and leaped at her, one of the Super GUTS members fired at it, instantly vaporizing it with his laser.

Soon Ultraman Dyna came up to fight the adult Diolius earlier. As the humans inside fended off the tiny larva, Diolius began to drain Dyna’s energy. The hero managed to get free, however, and push the monster back before hitting it with the Solgent Beam, vaporizing the flying creature.


  • Diolius' roars were reused from Gyanzar.
  • Diolius are speculated to be asexual, being able to lay eggs without a mate.


Diolius (Larva)


  • Height: 70 cm
  • Length: Unknown
  • Weight: 25 kg
  • Origin: Space
Powers and Weapons
  • Energy Blasts: Larva Diolius can fire energy blasts from its antenna.
  • Poisonuos egg fluid: Larva Diolius could emit a poisonous egg that can vaporize into a poisonous gas which will kill millions of people on Earth in a wide scale if the egg fluid entered Earth atmosphere.

Diolius (Adult)


  • Height: Unknown
  • Length: 115 m
  • Weight: 65,000 t
  • Origin: Space
Powers and Weapons
  • Flight: Diolius can fly with its wings on moderate speed.
  • Signal/Radio Wave detection: Diolius can detect radio waves with its antenna.
  • Energy Blasts: Adult Diolius can fire missile-strength energy blasts from its antenna.
  • Mandibles: Diolius can clamp in with the enemy with its mandibles.


Ultraman Dyna


Ultraman Dyna Kaiju
Ultraman Dyna Sphere | Darambia | Giralen | Neo Darambia | Cyclometra | Grossyna | Daigerun | Sildron | Forgas | Alien Dais | Gyabish | Bao-on | Giakuuda | Zenekindarl people | Dexador | Alien Meranie | Mons-Ahgar | Mukkito | Himala | Alien Mijir | Garaon | Alien Nuaza | Alien spirits | Alien Krea | Gyanzar | Clone Sildron | Clone Silvergon | Neosaurus | Alien Shilback | Zombayu | Bishmel | Kokakucho | Alien Lasesta | Sodom | Mozui | Diplas | Maricula | Sufume | Reicubas | Digon | Alien Chern Left | Alien Chern Right | Demagorg | Grossyna II | Male Gigantes | Female Gigantes | Gaigareid | Kogaraon | Garaon II | Gregore | Imit-Ultraman Dyna | Mons-Ahgar II | Lovemos | Satan Lovemos | Alien Naltis | Menorfa | Bazob | Geomos | Neo Geomos | Yumenokatamari | Bundar | Zomborg | Zomborg Soldiers | Clone Daigerun | Alien Jagira | Jagira Tree | God Jagira | Diolius | Alien Reguran Captain Zoyaka | Mountain Gulliver 5 | Golza II | Graikis | Torongar | Churasa | Moravia | Mejiwogu | Phantom Monster Army (Evil Tiga, Gyanzar, Forgas, Kokakucho, Zenekindarl people, Alien Nuaza Eshilis, Digon, Deathfacer, Alien Raybeak, Alien Natarn, Bishmel, Alien Manon, Mozui) | Alien Fabiras | Devil Fabiras | Alien Chadabin | Mogedon | Neo Darambia II | Terranoid | Zeluganoid | Neo Gaigareid | Gran-Sphere
Ultraman Tiga & Ultraman Dyna: Warriors of the Star of Light Geranda | Alien Monera | Deathfacer | Queen Monera
Ultraman Dyna: The Return of Hanejiro Alien Mijir | Pudgy Garaon | Booska | Kamosuke | Casa Madara | Arwon | Alien Dehadoh (Mentioned) | Hanejiro | Alien Fabiras (Hologram) | Wanzetto