Aura

Aura was the winged nymphs of breezes. Oftentimes, Aurae, the plural form, is used. They are said to be the daughters of Boreas, Eurus, Zephyrus, or Notus.

The Aurae are also said to partially resemble ghosts and can become part of the breeze or can prevent it. They appear to disappear into the air, which, along with the fact that they glide, is why they are often mistaken for spirits of the departed. They are also said to sometimes work with Aeolus and are the more gentle cousins of the Harpies.