The Article “Polistes formosanus Sonan, 1927 (Hymenoptera: Vespidae), a Good Species Supported by both Morphological and Molecular Phylogenetic Analyses, and a Key Social Wasp in Understanding the Historical Biogeography of the Nansei Islands” by Fuki Saito, Jun-ichi Kojima, Lien T. P. Nguyen, and Mikiko Kanuka, which appeared on pages  927–939 of the September Issue (Volume 24, No. 9), was incorrectly categorized in the “Reproductive Biology” section. The correct section for this article is “Taxonomy.”