Pistoeka sabotage droids, better known simply as buzz droids, were a type of insect-like automatons that were deployed in swarms during battlefleet actions by the Confederacy of Independent Systems. They could wreak havoc upon squadrons of starfighters that happened to fly through a formation of such deployed droids. Approximately one-quarter of a meter in diameter and well armed for their role, they were typically delivered by discord missiles from droid tri-fighters and Vulture droid starfighters.Buzz droids were intended to disable instead of destroy their targets. Since they were so effective when being deployed by droid tri-fighters, the CIS retrofitted a number of Vulture droids to carry them as well. The buzz droids also had simple maneuvering jets that helped them to move while still encased within their spheres. Once they came into contact with an enemy starship, they would use a magnetic leg to gain a foothold. The outer shell was coated with a heat dissipating alloy that allowed it to penetrate enemy shields; it was also constructed of shock-absorbing materials.
The buzz droid's design was based off the pisto, a pest that lived in tropical regions on the planet Colla IV. When pressed for more droids by the Confederacy, the Colicoids took their existing repair droids and modified them to be saboteurs.They apparently communicated through chattering, as shown when a group of buzz droids cut off the dome head of R4-P17, Obi-Wan Kenobi's astromech droid, during the Battle of Coruscant.
In some instances, buzz droids were deployed against living beings such as enemy infantry, with gruesome results.
Each droid has a main eye and two secondary eyes used for additional spacial awareness, an x-ray sensor, an extendable probe capable of invading computer systems, and is powered by a reactor primed for self destruction.