1. A revision of Phyciodes Hübner related genera with a review of the classification of the Melitaeinae;Diggins;Bull. Br. Mus. Nat. Hist. (Ent.),1981
2. An illustrated catalogue of the Palearctic Melitaea (Lep. Rhopalocera);Higgins;Trans R. Ent. Soc. London,1941
3. The Butterflies of North America;Scott,1986
4. The Lepidoptera of Europe;Karsholt,1986
5. A catalogue/checklist of the butteflies of America north of Mexico;Miller;Lepid. Soc.,1981