Polistes satan (Vespidae: Polistinae) forrageando em exsudato de frutos caídos de Phoenix roebelenii (Arecaceae)

We report for the first time the consumption of exudate from Phoenix roebelenii O’Brien (Arecaceae) fruits by the social wasp Polistes satan Bequaert, 1940 (Vespidae: Polistinae) in Brazil. The observation took place on 13 August 2025 at the Federal Institute of Minas Gerais, Bambuí Campus, in an anthropised environment. Six individuals were observed feeding on exudate from the pulp (mesocarp) remaining in the calyx of the clusters after the fruits had fallen. The wasps did not directly access the interior of the intact fruits. This record highlights the opportunistic use of an exotic plant as a food resource by a native social wasp and expands our knowledge of trophic interactions between insects and exotic plants.