15x15x6cm frame (black).
This butterfly is found only on the Indonesian island of Sulawesi. The arresting colouration is due not to pigmentation but to the effect of refraction – light bouncing off the intricate microscopic structures in the scales themselves. Scientists have attempted to replicate the metallic and iridescent colouring as it could be used in anti-forgery technology for banknotes and credit cards. For more information, take a look at this fascinating article here: http://www.cam.ac.uk/research/news/how-butterflies%E2%80%99-wings-could-cut-bank-fraud