Vila R., Eastwood R., Extrafloral nectar feeding by Strymon jacqueline Nicolay & Robbins, 2005 (Lepidoptera: Lycaenidae: Eumaeini), Revista Peruana de Biología, 2006, 13(1):125-128
An observation of butterflies taking droplets of secretion from Neoraimondia arequipensis fruits in northern Peru.