The Lectroids are an alien species from Planet 10. They appeared in the 1984 movie The Adventures of Buckaroo Banzai Across the 8th Dimension.

The Lectroids were divided into two racial divisions, Red and Black. Red Lectroids were unstable and violent, and organized like a military dictatorship; Black Lectroids, conversely, were more peaceful and freedom-loving but still capable of using any means necessary to protect themselves from Reds.


Lectroids appear similar to Earth ants in their physiology and social structure:

  • there are Red and Black Lectroids, much like red and black ants
  • Lectroids like to eat sugar
  • Lectroid society and technology (at least judging from the inside of the Yoyodyne Propulsion Systems building) looks much like an anthill

Physically speaking, Lectroids were incredibly strong, able to incapacitate or kill a human with one blow to the head. Lectroids could also jump great distances with minimal effort, implying that gravity on Planet 10 was higher. Lectroids could also spit poisonous darts from their mouths which kill or wound anyone or anything they hit. Lectroids are also completely hairless, though their human disguises (all Lectroids emit pheromones which prevent humans from seeing the true Lectroid form) do usually have hair.

Black Lectroids respected human beings and were willing to work with them; however, Red Lectroids greatly disliked humans, whom they dismissed as "Monkey-boys".