Gareca, Y. and Blandin, P. 2011. Morpho (Morpho) helenor (Cramer) (Lepidoptera, Nymphalidae, Morphinae) in Bolivia: Geographical distribution and ecological plasticity, with a description of a new subspecies. Zootaxa. 3130, 1 (Dec. 2011), 30–56. DOI:https://doi.org/10.11646/zootaxa.3130.1.2.