This video from the USA says about itself:
17 September 2016
The bold pattern of eyespots on the wings mark this as a Buckeye Butterfly. The eyespots likely serve to startle or distract predators, especially young birds.But this is the darker Mangrove buckeye, West Indian buckeye or tropical buckeye, (Junonia evarete) is a neotropical nymphalid butterfly found from Florida and the Caribbean, Mexico, Central America, to tropical and subtropical South America. The type locality is Surinam, and numerous subspecies have been described. The butterfly is easily confused with Junonia genoveva, which is also known as the mangrove buckeye.