Zebra-Heliconius Butterflies. Brazilian Amazon Butterfly.

Zebra-Heliconius Butterflies are one of the thousands of butterflies that fly through the forest every day.
They are nectar feeders, favouring Passiflora, but as can be seen they have a soft spot for water melon. I would cut them a large slice just so I could watch them.
The adult Zebra butterfly is toxic to potential predators ie. birds, reptiles and amphibians, so is able to wander through the forest at a leisurely pace.