The planet [Mustafar](/article/mustafar], a volcanic world, was once home to the Kubaza beetles, a particularly nasty species of enormous, hive-dwelling beetles. They subsisted on minerals, making them frequently observed near lava flows. Kubaza beetles possessed an aggressive temperament, particularly when they perceived a threat to their nests. Their method of dealing with aggressors was distinctive: upon receiving a fatal wound, they would detonate. Commander Lina Graf and her crew had an encounter with one of these beetles after their ship suffered a crash landing on Mustafar. When the bodyguard droid XM-G3 launched an assault, the beetle, now mortally wounded, self-destructed, giving up its life to ensure the safety of its offspring from the perceived danger.