The potter wasps of the Maltese Islands (Hymenoptera, Vespidae, Eumeninae) Author Cassar, Thomas Department of Biology, Faculty of Science, University of Malta, Msida MSD 2080, Malta thomas.m.cassar.19@um.edu.mt Author Mifsud, David Institute of Earth Systems, Division of Rural Sciences and Food Systems, University of Malta, Msida MSD 2080, Malta Author Selis, Marco Via dei Tarquini, 22 - 01100 Viterbo, Italy text Journal of Hymenoptera Research 2022 2022-04-29 90 201 212 http://dx.doi.org/10.3897/jhr.90.79373 journal article http://dx.doi.org/10.3897/jhr.90.79373 1314-2607-90-201 1170E62DD9D4422DAC60843EB114B10E 408DFE09202B5A5C9B7C10DE0470A29E 6508934 Ancistrocerus biphaleratus (de Saussure, 1852) Material examined. Malta • 1♀ , Buskett , 27 Feb. 2021 , T. Cassar leg. ; 1♂ , Dingli , 2 Feb. 2020 , T. Cassar leg. ; 1♀ , Gћajn Riћana , 15 Dec. 2019 , T. Cassar leg.; 2♀♀ , Gћar il-Kbir, 29 Mar. 2020 , T. Cassar leg.; 1♀ , Gћar il-Kbir, 5 Apr. 2020 , T. Cassar leg.; 1♀ , Qrendi , 29 Feb. 2020 , T. Cassar leg. ; 1♂ , Zebbuġ , 20 Nov. 2019 , T. Cassar leg.; 1♀ , Zebbuġ , 20 Feb. 2020 , T. Cassar leg.; 1♀ , Zebbuġ , iii.2020 , T. Cassar leg. Notes. All the above cited material corresponds to the subspecies Ancistrocerus biphaleratus tripolitanus (von Schulthess, 1924), a taxon first recorded in the Maltese Islands by Schembri (1985) which can also be found in Cyrenaica (Libya). However, another subspecies has been recorded from the Maltese archipelago, Ancistrocerus biphaleratus triphaleratus (de Saussure, 1855), first by Erlandsson (1972) , then confirmed by material collected by Schembri (1980) . This latter taxon is more widely distributed within Europe, including Iberia, France, Sardinia (Italy), Sicily (Italy) and Greece; it is also found in Northwest Africa and Asia Minor (Carpenter, unpublished). The presence of these two subspecies in Malta was discussed by Schembri (1985) .