Glasswing Greta oto feeding on Tree nymph butterfly

A Scavenger Butterfly! The glasswings are opportunistic insects and can often be found feeding on other dead butterflies, empty pupal cases and, in this case, the wing of a living Tree Nymph . The reason for this is that the Tree Nymph belongs to a related group of butterflies, the Monarch group, that contains similar pungent chemicals that the glasswing uses for its own defence. Glasswings also uses these chemicals for making pheromones to attract females.

Name: Glasswing

Latin: Greta oto

Family: Nymphalidae

Origin: C. & S. America

Food plant: Cestrum

Glasswing butterfly Great oto thumbnail