Field Identification of the Postmen Heliconius erato and H. melpomene (Lepidoptera, Nymphalidae, Heliconiinae), in Trinidad &Tobago

Abstract

Known as postmen in Trinidad & Tobago, Heliconius erato (Linnaeus) and Heliconius melpomene (Linnaeus) are widely distributed in Central and South America. This note sets out how the two species may be separated in dorsal view in Trinidad and Tobago.