Piotr Naskrecki / Helenor Morpho (Morpho helenor) butterfly in rainforest, Monteverde Cloud Forest Reserve, Costa Rica

Joao Burini / Group of Morpho caterpillars (Morpho sp) Guainumbi Private Reserve, Sao Paulo, Atlantic Forest South-East Reserves, UNESCO World Heritage Site, Brazil.

Adrian Davies / Blue Morpho butterfly (Morpho peleides showing iridescence with change of angle in relation to light source

Paul Bertner / Theseus Morpho (Morpho theseus) chrysalis, Yasuni National Park, Ecuador

Konrad Wothe / Morpho Butterfly (Morpho sp) wing scales, Amazon, South America

Angelo Gandolfi / Blue morpho (Morpho helenor) butterflies feeding on mango fruit, butterfly observatory, La Paz Waterfall Gardens, Costa Rica.

Angelo Gandolfi / Blue morpho butterfly (Morpho peleides) on a leaf with wings open, Corcovado National Park, Costa Rica.

Angelo Gandolfi / Blue morpho (Morpho peleides) on a leaf, with wings closed, Corcovado National Park, Costa Rica.

Ingo Arndt / Caterpillar larva of Common morpho butterfly (Morpho peleides) hatching from egg, Costa Rica, Sequence 4/5

Ingo Arndt / Caterpillar larva of Common morpho butterfly (Morpho peleides) hatching from egg, Costa Rica, Sequence 5/5

Ingo Arndt / Caterpillar larva of Common morpho butterfly (Morpho peleides) hatching from egg, Costa Rica, Sequence 3/5

Ingo Arndt / Close-up of eye on wing of Common morpho butterfly (Morpho peleides) Costa Rica