Reference
Harry van Oorschot, Hubertus van den Brink (1989): Rhopalocera of Turkey. 4. The specific problem of Melitaea didyma (Esper, 1779) and M. transcaucasica (Turati, 1919) (Lepidoptera : Nymphalidae) (*) – Nota lepidopterologica – 12: 183 - 186.