Having flown over Jona after spraying the irradiated liquid at him, the bug couldn't imediately follow up with another attack as Jona began drying off his face. It considdered turning and flying towards Jona, but decided against it, figuring the chances of Jona generating another wall of flame by the time the bug would reach him were too high. Instead, the bug tilted its wings forward slightly to slow down and began descending, flying two blocks away from the rooftop Jona stood on.
Lacking any ranged attacks that could do real damage without its guns, the bug opted to take a hit-and-run approach.