Starbugs

These beetles create globes of saliva that they fill with air, then they seal them off and get carried away by the slightest breeze. Starbugs are far from subtle. They can also glow like a firefly. This gives off some heat and lets their saliva-sphere float with a bit of control. The light fills the globe like a lantern, making it seem like a will-o-the-wisp from afar. These creatures inhabit dusky swamps and use their odd form of locomotion to find suitable mates and avoid waterborne predators in the swampy waters where they lay eggs.