The famous introduction to chaos theory.., the Butterfly Effect.
See (and support) the wiki page: Wikipedia on the Butterfly Effect
As for the critter itself, I don’t know who they are or what they are named but really like to photograph them. It’s challenging and they are beautiful. I recently found and joined a facebook page for butterfly enthusiasts. It’s a worldwide enthusiasm. When a butterfly on the other side of the world flaps it’s wings, it really does have an effect here. Thanks to the Butterfly people for helping me identify these:
Fritillary, Pocono Mountain Forest
Spicebush Swallowtail, Bashakill Wetland Refuge, NY
Red Admiral, Red Bug Slough, Sarasota FL
See this: Butterfly Enthusiast FB page