plural noun
Hel·​i·​co·​ni·​idae | \ ˌheləkəˈnīəˌdē\

Definition of Heliconiidae

in some classifications
: a family of chiefly tropical American butterflies with long forewings and small rounded hind wings that is commonly included in the family Nymphalidae

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History and Etymology for Heliconiidae

New Latin, from Heliconius, type genus + -idae

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