Arachni Cam

The Arachni Cam is a spider-like creature with an eyeball on its back used by the Trix.

Magical Abilities
Arachni Cams can project images in the eye. Their lids can open and close at will. Just as its name suggests, it is similar to a spider and its eyeball is used as a camera for surveillance or to spy on other creatures.

Season 1
In Season 1, the Trix use it to spy on the Winx.

The Battle for Magix
The Trix use this to spy on Knut, Bloom, Stella, Sky, Brandon, and Riven as they infiltrate into Cloud Tower.

Trivia

 * Despite being called an Arachni Cam, it has only six legs, like an insect, instead of eight legs, like an arachnid.