Heliconius cydno Longwing

A sister species to the Postman. Cydno is closely related to the Postman that can be seen in most butterfly houses. They even hybridise with each other. In the wild this is avoided by the two species occupying different habitats and them looking very different from each other. In fact, Cydno shares the same blue and white colour of H. sapho; both species harbouring toxic cyanogenic compounds in their bodies.

Name: Cydno Longwing

Latin: Heliconius cydno

Family: Nymphalidae

Origin: S. & C. America

Food plant: Passion vines