Cla'tac'teth

From Tardis Wiki, the free Doctor Who reference

The Cla'tac'teth was an insectoid race that lived hundreds of billions of years in the far future, just before the heat death of the universe. Their home planet orbited a neutron star orbiting the Great Attractor.

The Cla'tac'teth also existed in a parallel universe where the entropy wave wasn't stopped by the Fourth Doctor and the Tremas Master. (PROSE: The Quantum Archangel)