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Guides
Heliconiinae
longwings, heliconians, fritillaries and longwings
Heliconiinae is a subfamily of brush-footed butterflies (Nymphalidae) comprising 45–50 genera, commonly known as longwings or heliconians. Members are distinguished by elongated forewings and predominantly reddish-black coloration. They are notable among butterflies for actively consuming pollen, which extends adult longevity. The subfamily exhibits complex coevolutionary relationships with Passifloraceae host plants and serves as a classic model for studies of Müllerian and Batesian mimicry.
Heliconius erato
red postman, small postman, red passion flower butterfly, crimson-patched longwing
Heliconius erato is a neotropical butterfly renowned for its exceptional longevity among butterflies, living up to six months in the wild and over 186 days in captivity. This extended lifespan is enabled by its unique ability among butterflies to digest pollen, extracting amino acids through specialized proboscis behavior. The species exhibits Müllerian mimicry with co-occurring Heliconius species, particularly H. melpomene, sharing aposematic warning coloration to deter predators. Adults display remarkable philopatry, maintaining restricted home ranges sometimes separated by only 30 yards from neighboring territories. The species was described by Linnaeus in 1758 and comprises numerous geographically variable subspecies divided into eastern and western Andean clades.