Chronomite

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Chronomites around the Eleventh Doctor. (GAME: TARDIS)

Chronomites were four-dimensional creatures who lived in the Void and in riptides in space-time. They were harmless but very itchy. The Eleventh Doctor convinced the Entity to feed on them as they would continually renew themselves. (GAME: TARDIS [+]Loading...["TARDIS (video game)"])

Rassilon referred to the Sicari as chronomites to be crushed beneath his heel. (AUDIO: Assassins [+]Loading...["Assassins (audio story)"])