Sentinel beetles were beetles used by the Yuuzhan Vong. Placed around their slave cities, the beetles would begin to flap their wings and create a steady drone whenever there was an escape attempt or an intruder. That way, they would alert nearby Yuuzhan Vong warriors who would then "deal" with the problem. They were similar to turfhoppers.
- The New Jedi Order: Dark Tide I: Onslaught (First appearance)
- The New Jedi Order: The Unifying Force