Warp capable: Yes
Environmental requirements: M class
Federation Status: Neutral
First Encountered: by the Enterprise D (TNG, Clues)
The Paxans were a xenophobic, isolationist, possibly energy-based species inhabiting a planet orbiting a T-Tauri type star in the Ngame Nebula.
In order to conceal their existence from intruders, anyone entering their territory would be confronted with an apparent wormhole, which was actually, an energy field, which would stun the ship’s crew and place them in a state of biochemical stasis. The ship would then be transported out of their space. The intruder would then regain consciousness, assume the wormhole was responsible for their altered position, and depart.