Literature

• Butterflies of America 2018. Butterflies of America. [link]
• Hill, A. 2012. Butterflies and Moths in the West Indies of the Caribbean. Focus on Nature Tours.

Literature references linked to higher taxa

• Catalogue of Life. Species 2000 & ITIS. [link] (Papilionoidea)
• Bos, O.G., Bakker, P.A.J., Henkens, R., Debrot, A.O. & Freitas, J. de 2018. Preliminary checklist of extant endemic species and subspecies of the windward Saba and the Saba Bank. 65. Wageningen Marine Research Report no. C067.18. (Dryas iulia)
• Debrot, A.O. & Miller, J.Y. 2004. Butterflies and moths of Curaçao, Aruba and Bonaire. 1-100. CARMABI Foundation, Willemstad. (Dryas iulia)
• Debrot, A.O., Madden, H., Becking, L.E., Rojer, A. & Miller, J.Y. 2020. The butterflies of St. Eustatius with faunal comparisons among the adjacent islands of the Lesser Antilles. Caribbean Journal of Science 50(1): 91-106. [link] (Dryas iulia)
• Debrot, A.O., Miller, J.Y., Miller, J.D. & Leysner, B.T. 1999. The Butterfly fauna of Curaçao, West Indies: 1996 Status and Long-term species turnover. Caribbean Journal of Science 35: 184-194. (Dryas iulia)
• Maddison, D. (ed.). Tree of Life web project. [link] (Nymphalidae)
• Miller, J.Y., Debrot, A.O., Miller, L.D. 2003. A survey of butterflies from Aruba and Bonaire and new Records for Curaçao. Caribbean Journal of Science 39: 170-175. (Dryas iulia)
• Nymphalidae Systematics Group 2008. A taxonomic database of Nymphalidae butterflies. Version 01. [link] (Dryas)
• Pinchon, R., Enrico, P. 1969. Faune des Antilles Françaises: les Papillons. 258 pp.. (Dryas iulia)
• Rojer, A. 1997. Biological Inventory of Saba. 87 pp. CARMABI Foundation, Curaçao. (Dryas iulia)