STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Butterfly wing. Coloured scanning electron micrograph (SEM) of scales on a small blue butterfly (Cupido minimus) wing. A butterfly wing is covered in many tiny scales. The scales are modified hairs, or setae, and are made of chitin, a common substance in insect exoskeletons. The iridescence of the colours of a butterfly's wings is produced by the diffraction of light by the microscopic structure of these scales. Magnification: x200 when printed at 10 centimetres wide.
Model release not required. Property release not required.