The Trickster's Brigade
From Tardis Wiki, the free Doctor Who reference
The Trickster's Brigade was the collective name for a group of beetle-like creatures that fed on time. They changed timelines. They are also known as Time Beetles. They are affiliated to the Trickster.
One Time Beetle attached to Donna Noble on the planet Shan Shen. The change it caused was to stop Donna from working at H.C. Clements. This in turn stopped her from meeting the Doctor, and so he died in the Empress of the Racnoss's lair under the Thames Barrier. However, with the help of Rose Tyler from Pete's World, this change in history was reversed and the member of the Trickster's Brigade died. (DW: Turn Left)