The dark green fritillary (Argynnis aglaja) is a butterfly of the family Nymphalidae. The insect has a wide range in the Palearctic ecozone - Europe, Morocco, Iran, Siberia, Central Asia, China, Korea and Japan.
In the U.K. the habitat is often pastures and flowery banks, and nearby areas where the preferred food plants for the larvae, Viola canina and Viola riviniana, grow.
The dark green fritillary uses violets within bracken mosaics frequently consisting of one-third bracken and two-thirds grass, often on the edges of suitable high brown fritillary habitat. Their distribution can be found on the NBN website.