Dias, M.M. (2011) Taxonomic considerations on the genera Forster and Dias, (Lepidoptera, Nymphalidae, Satyrinae). Brazilian Journal of Biology 71. Freitas, A.V.L. (2007) A new species of Forster (Lepidoptera: Satyrinae, Euptychiina) from the highlands of Southeastern Brazil. Neotropical Entomology 36 Lewis, H.L. (1974) Fjärilar från hela världen. Forum, Stockholm. ISBN 91-37-10100-5 Markku Savela's Lepidoptera and some other life forms: Sjekkliste over artene. Hentet 11.1. 2012.