Dryas iulia is sometimes also called Julia Butterfly.
These photos all show a male Dryas iulia.
Females are more brown orange than males, and they have more dark marks on top of the wings than males.

1st, 2nd & 3rd photo: Casa Cubuy Ecolodge area, El Yunque National Forest, Puerto Rico, 21 January 2026
4th & 5th photo: Rio Abajo State Forest, Puerto Rico, 16 January 2026