Yao, Izumi. 2014. “Seasonal Trends in Honeydew-Foraging Strategies in the Red Wood Ant, Formica Yessensis (Hymenoptera: Formicidae)”. Sociobiology 59 (4). Feira de Santana, Brazil:1351-63. https://doi.org/10.13102/sociobiology.v59i4.519.