To cite this article: Pham, P.H., 2021. Further observations on the overwintering habits of the paper wasp Polistes (Gyrostoma) Olivaceus (De Geer, 1773) (Hymenoptera: Vespidae) in Vietnam. Punjab Univ. J. Zool., 36(2): 193-196. https://dx.doi.org/10.17582/journal.pujz/2021.36.2.193.196