Alien species of phytophagous beetles (Coleoptera: Chrysomelidae and Curculionoidea) of the Volga and Ural region

Based on long-term research (2000–2025) and a review of literature sources, data on leaf beetles and weevils adventitious to the Trans-Volga-Ural region are summarized for the first time. These can be considered to be 6 species of Chrysomelidae (including 4 species of Bruchinae), 1 species of Nemonychidae, 4 species of Brentidae and 16 species of Curculionidae. 11 species are archaeoinvaders, 16 are neoinvaders, including 9 species (Callosobruchus maculatus (Fabricius, 1775), Magdalis angulicollis Boheman, 1843, M. margaritae Barrios, 1984, Cardipennis rubripes Hustache, 1916, Otiorhynchus smreczynskii Cmoluch, 1961, O. sulcatus (Fabricius, 1775), Pholicodes cf. pancaucasicus Davidian, 1992, Ph. inauratus inauratus Boheman, 1833, Polydrusus formosus Mayer, 1779), which probably penetrated into the region in the 21st century. The number of invaders known in the Trans-Volga region significantly exceeds that in the TransUrals (21 versus 12). In the Urals (including the Cis-Urals), 16 adventitious species have been noted. The adventive component includes West Palaearctic nemoral (8), Iranian-Turanian and Mediterranean (8), North Asian (5), Southeast Asian (3) and American (2) species in origin.