The two resulting populations will evolve and adapt differently over time to the different ranges as the conditions change in both ranges.
Their color, size, lifespan, and consumption choices may change with that.
After all of this takes place, you're left with 2 new breeds/species of butterflies.
Hope I helped :)
What are your choices? Pteranodon means wing without tooth.
Sea levels would rise and lots of homes would be under water , tsunamis etc