FRAGMENTA FAUNISTICA 62 (2): 87–115, 2019 PL ISSN 0015-9301 © MUSEUM AND INSTITUTE OF ZOOLOGY PAS DOI 10.3161/00159301FF2019.62.2.087 Contribution to the knowledge of digger wasps (Hymenoptera: Crabronidae, Sphecidae) of Gdańsk Pomerania Piotr OLSZEWSKI1 and Jan Krzysztof KOWALCZYK2 1Department of Ecology and Biogeography, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87-100 Torun, Poland; corresponding author:
[email protected] 2Jana Matejki 13 m. 45, 81–407 Gdynia, Poland Abstract: The paper presents information about the occurrence of digger wasps in the Pomeranian Lake District and on the Baltic Coast. Samples were collected from 1983 to 2016. The study yielded a total of 127 species (about 53% of Polish fauna) belonging to 35 genera; were recorded 22 species are new for the Baltic Coast and 2 are new for the Pomeranian Lake District. Also, 22 of the species identified are on the Red List of Threatened Animals in Poland: Ammophila pubescens Curtis, 1836, Bembix rostrata (Linnaeus, 1758), Cerceris ruficornis (Fabricius, 1793), Crossocerus congener. (Dahlbom, 1845), C. heydeni Kohl, 1880, C. pullulus (A. Morawitz, 1866), C. styrius (Kohl, 1892), C. tarsatus (Shuckard, 1837), Didineis lunicornis (Fabricius, 1798), Dolichurus corniculus (Spinola, 1808), Dryudella pinguis (Dahlbom, 1832), Ectemnius fossorius (Linnaeus, 1758), Gorytes fallax Handlirsch, 1888, Harpactus tumidus (Panzer,1801), Lestica alata (Panzer, 1797), Mimumesa beaumonti (van Lith, 1949), Miscophus ater Lepeletier, 1845, Nysson niger Chevrier, 1868, Oxybelus variegatus Wesmael, 1852, Pemphredon austriaca (Kohl, 1888), Tachysphex fulvitarsis A. Costa, 1867 and T. psammobius (Kohl, 1880). Key words: Hymenoptera, Crabronidae, Sphecidae, new records, Eastern Pomerania, Northern Poland INTRODUCTION In the world fauna, there are 10,007 species of digger wasps (Pulawski 2019), 241 of which are found in Poland (Olszewski et al.