Swarm drone

Swarm drones were originally a drone workforce left behind on Altamid by the original inhabitants prior to the 22nd Century. They were then re-purposed by Krall by the 2260s.

History
Following the crash of the USS Franklin (NX-326) on Altamid in the 2160s, Captain Balthazar Edison and his surviving crewdiscovered the abandoned workforce, along with sophisticated mining equipment and life prolonging technology. As Edison became Krall, he re-purposed the workforce to serve as his personal military. Using their ships, the drones would capture alien vessels and bring the surviving crew to Krall's base on Altamid.

By 2263 of the Kelvin timeline, Krall and Manas then attacked and boarded the USS Enterprise (NCC-1701) (alternate reality) under Captain with the drones. The drones killed a great number of the crew. Following the destruction of the Enterprise, the drones then captured the surviving crew and took them to Krall's base. Several drones then went to assist Kalara in retrieving the Abronath, to no avail.

Krall then took all the drones to Yorktown, where he hoped to kill everyone their. However, all the drones and their ships were destroyed when Kirk, using the USS Franklin (NX-326), created a radio signal to disrupt their communication signals and destroy them all.

Technical data
The drones resembled insect like humanoids. In addition, each drone had arm-mounted particle weapons and had heavy armor. They were also capable of piloting ships in complicated formations. Their formations and attack maneuvers were well executed in their attack on the Enterprise.

Their only flaw was that they were unable to work alone. They relied heavily on networked cyberpathic communication that was similar to bees.