Demobat

Demobats are predatory creatures indigenous to the Upside Down, they intellectually share a link with Henry Creel, also known as Vecna.

Biology
Demobats are small repellent organisms with a rather bat-like appearance. Demobats have about six limbs which basically act like pairs of wings. They seem to be a social species as they're usually shown in colonies.

Appearances

 * Stranger Things
 * s04e07, "The Massacre at Hawkins Lab" (2022)
 * s04e09, "The Piggyback" (2022)