The Attendant

 was a guardian of the Galactic Seed Vault.

It was beetle-like and had mandibles on either side of the head. Its forelegs were multi-segmented, some ending with claws. It had a proboscis where humans and Time Lords have a nose. It also had mandibles.

The Attendant was not capable of audible speech. It mostly communicated by chittering noises and gestures. (PROSE: The Secret in Vault 13)