Home – Home – Jornals – Flora and Vegetation of Asian Russia 2025 number 1

The preliminary results of studying the complex of anthophilous insects of introduced woody plants Syringa vulgaris L. and S. josikaea Jacq. (Oleaceae) are presented, as well as characteristics of their seasonal development. The research was carried out over three years (2019-2021) on the territory of the Dendrological Park (Novosibirsk) using standard methods. The phenological development of shrubs generally corresponded to the growing season of local species of the Novosibirsk Region. The timing and duration of flowering of woody plants was influenced by weather conditions. The life status of model plants of S. vulgaris and S. josikaea was good. Flowering of S. josikaea shrubs was estimated as good (2019 and 2021) and abundant (2020), flowering of S. vulgaris was good (2019-2021). On the inflorescences of model plant species, a total of 56 species of insects belonging to 5 orders were noted: Hymenoptera (18), Hemiptera (14 species), Coleoptera (12 species), Diptera (9 species), Neuroptera (2 species) and Lepidoptera (1 species). Of these, 17 species were classified as pollinators and 39 species as insect visitors, of which 19 were insect pests, 10 parasites, 5 predators, 4 nectophages and 1 pollinophage. Among the pollinators, 5 major and 12 minor pollinators were identified; no specialized pollinators were noted. All pollinators were polylectic species. The anthophilous insect complex of S. vulgaris differed from S. josikaea both in insect density and in the number of species. The inflorescences of S. josikaea turned out to be the most attractive to insects. The similarity in the species composition of anthophilous insects of S. vulgaris and S. josikaea was 39 %: 22 common species were noted, of which 3 species were classified as major pollinators and 2 as minor pollinators. In general, the anthophilous insect complex of S. josikaea turned out to be much more diverse than that of S. vulgaris.