The underside of a
Melitaea didyma butterfly. Also known as the spotted fritillary or the red-band fritillary, the species is in the family
Nymphalidae. It is a medium-sized butterfly with a
wingspan reaching 35–50 mm (1.4–2.0 in). The overside of the wings is a bright orange-brown with dark brown markings arranged in rows, which are quite variable in quantity and size. Sometimes the colour of the females is a duller orange, shaded with grey-green. The underside of the wings is chequered pale yellow and pale orange. It is found in southern and central Europe, northern Africa, the Middle East, central Asia and Siberia.
Photograph credit: Charles J. Sharp