Spotted Fritillary

Melitaea didyma is a medium size butterfly with a wingspan reaching 35–50 millimetres (1.4–2.0 in). The upperside of the wings is bright orange-brown with dark brown drawings arranged in rows, quite variable in quantity and size. Sometimes the color of the females is duller orange, shaded with gray-green. The undeside of the wings is checkered pale yellow and pale orange. M. didyma has a seasonal and sexual dimorphism. This butterfly flies from March to October depending on the location. This species has two or three generations and overwinters as young caterpillar. (Wikipedia)