Nemuina

Nemuinas are a fairy-like species from the planet Nemunimos IV.

Appearance
Nemuinas are blue-skinned fairy-like aliens with purple fairy-like wings and blue hair. They speak with a trilling voice.

Powers and Abilities
Nemuinas are capable of flight, and possesses enhanced speed and agility thanks to their fairy-like wings. In addition, they can release a green dust that makes others fall asleep, and can enter and manipulate the dreams of others, which can be used as a form of interrogation or extracting information.

Omnitrix Transformation
The Omnitrix's Nemuina representative is named Pesky Dust, who first appeared in the Omniverse episode "Outbreak" when Blukic and Driba tried to repair the Omnitrix. Pesky Dust solely appears in Omniverse.

The Ben Tennyson of Dimension 23 has an equivalent of Pesky Dust named Nighty Knight, who first appeared in the Omniverse episode "It's a Mad, Mad, Mad Ben World: Part 1".

Etymology
The name "Nemuina" means "I feel sleepy" in Japanese.