Pierwsze stwierdzenie Isodontia mexicana (de Saussure, 1867) (Hymenoptera, Aculeata: Sphecidae) na Górnym Śląsku

First record of Isodontia mexicana (de Saussure, 1867) (Hymenoptera, Aculeata: Sphecidae) in Upper Silesia.Between 2022 and 2025, numerous adult specimens of Isodontia mexicana were observed and collected for the first time in Upper Silesia at five locations: in Katowice, Gliwice, and Mysłowice. A brief overview of the species' expansion in Europe and Poland is presented. The floral preferences of the imago and the current distribution of I. mexicana in the region are discussed.