|Behind the scenes|
Monsters vs. Aliens (ending)
Butterflysaurus is a giant butterfly monster.
Insectosaurus was blasted by an electric ball fired from Gallaxhar's Ship making her fall down and pass out, after her metamorphosis she is transformed into a butterfly and saved the monsters from Gallaxhar's ship before self-destruction. Now as "Butterflysaurus" she serves as the monsters' mode of transportation.