Wasps (Crabronidae, Sphecidae, Scoliidae, and Pompilidae) of Rivne Nature Reserve and their trophic relationships with angiosperms

Background. The article presents data obtained as a result of our research on the territory of Rivne Nature Reserve during 2018–2022. We collected 118 individuals belon­ging to 43 species, 19 genera from the Crabronidae, Sphecidae, Scoliidae, and Pompilidae families. The captured insects fed on 12 plant species belonging to eight families. A preliminary list of wasp species of the studied families that occur on the territory of Rivne Nature Reserve is presented. The studied individuals are stored in the entomological collections of the Zoological Museum of Ivan Franko National University of Lviv. The aim of the research was to prepare a preliminary list of wasp species of Rivne Nature Reserve and to identify their trophic relationships with angiosperms. Material and Methods. The object of the research was the wasps of the Crabronidae, Sphecidae, Scoliidae, and Pompilidae families. Insects were caught by an entomological net using the method of selective catching directly on plants to identify their trophic relationships. Konus Crystal 7x-45x binoculars (Konus, Italy) and specialized keys and descriptions were used to identify the insects. Identification of angiosperms was carried out with the help of special keys. Results. We collected 43 species of wasps belonging to 19 genera (Bembix, Cerceris, Crabro, Crossocerus, Ectemnius, Lestica, Nysson, Oxybelus, Gorytes, Pemphredon, Tachysphex, Ammophila, Sceliphron, Scolia, Priocnemis, Anoplius, Arachnospila, Episyron, and Dipogon). Most of the wasps (40 species) were registered on the territory of Rivne Nature Reserve for the first time. We identified trophic relationships between the adults of 27 wasp species and plants belonging to 12 genera. The publication provides a preliminary list of the species from the territory of Rivne Nature Reserve. The individuals are stored in the collections of the Zoological Museum of Lviv University. Conclusions. Out of 43 species (19 genera) of wasps, 40 were recorded for the first time in Rivne Nature Reserve. These include Sceliphron curvatum, which is invasive in Europe.Trophic relationships of 27 adult wasp species with 12 angiosperm species were established. As a result, a preliminary list of wasp species for the territory of Rivne Nature Reserve was prepared and trophic relationships of some representatives of the families Crabronidae, Sphecidae, Scoliidae, and Pompilidae with angiosperms were revealed.