Looker

Lookers are large, floating coleopteranoids are are utilized by the Pfhor to guard areas - generally tight corridors to maximize their lethality. They are ordered, trained, programmed, or perhaps even controlled by instinct to charge at Humans of any variety (both those attempting to fight the Pfhor as well as BOBs), and upon reaching their target they will explode violently, dealing considerable damage as one might expect from such a detonation. It is not entirely clear as to whether they are an actual member of the Pfhor Slavers and therefore presumably sapient (or trained like attack dogs or if they are instead simple pests that happen to infest Pfhor ships.