- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Planet: Flaxia. The humanoid space-faring species of Retaya, a hitman associated with the Romulan Tal Shiar who attempted to kill Elim Garak. Flaxian assassins are known to favor a pheromonic sensor, a bomb that's triggered when a person of a particular species gets within range.