Bug

Bugs are flying, roving bots which are found in the Claptastic Voyage DLC. They feature a glitched effect and can come in a variety of types.

Variations
Note: This section is almost certainly incomplete. Any alternate names present in TVHM or UVHM are also not noted yere yet.

Bug.bat
These are the standard-size bug. Their glitch effect is blue.

Buglet.app
These are the smallest and easiest form of Bug. Their glitch effect is blue.

SpyBug
SpyBugs don't attack Vault Hunters directly. Their glitch effect is yellow. These bugs will become invisible and follow Vault Hunters around. Their red dot remains visible on the minimap, and can still be heard while flying around. They will suddenly become visible again when they flash a bright white light at a Vault Hunter, temporarily blinding them (though the effect doesn't last long).

Adbug
These bugs don't attack Vault Hunters directly, either. Their glitch effect is white. They will follow a Vault Hunter around and beam a semitransparent advertisement at the Vault Hunter, partially obscuring the field of vision.

BadassBug.exe
This is the Badass version of the Bug, featuring shields and an increased health bar. Their glitch effect is yellow. BadassBug.exe resembles an X-Wing fighter from Star Wars - the split "wings" can move apart (into an X shape) or remain flat together.