Postman Butterfly Heliconius melpomene amaryllis on leaves. Family nymphalidae genus heliconius species melpomene subspecies amaryllis Heliconius melpomene, the postman butterfly, common postman or simply postman, is a brightly colored butterfly found throughout Mexico and Central America. H. melpomene was one of the first butterfly species observed to forage for pollen, a behavior that is common in other groups but rare in butterflies. Predominately black with either red or yellow stripes across the forewings. Dorsal wing view.