Year: 2025, Number: 3, Pages: 77-90
This paper summarizes data on the species composition and presents a preliminary analysis of the taxonomic and ecological structure of the leaf beetle fauna (Coleoptera, Chrysomelidae) of the Daurian Nature Reserve. Currently, the fauna comprises 107 species, 42 genera, eight subfamilies, and one family. For the first time, 38 species, 14 genera, and three subfamilies of leaf beetles are reported for the reserve’s fauna. Among them, the genus Atrachya Chevrolat, 1836, and four species Atrachya menetriesi (Faldermann, 1835), Cryptocephalus oxysternus Jacobson, 1896, C. nigrofasciatus Jacoby, 1885, and Labidostomis amurensis nigrilabris Medvedev, 1980 are recorded for the fauna of Eastern Siberia for the first time. The taxonomic structure of the leaf beetle fauna of the Daurian Nature Reserve closely resembles that of the leaf beetles found in Eastern Siberia and Mongolia. The core of the reserve’s leaf beetle fauna consists of representatives from three subfamilies: Cryptocephalinae (42 species), Galerucinae (24 species), and Chrysomelinae (17 species), which together account for about 75% of the total leaf beetle fauna in the reserve. The trophic structure of the leaf beetle fauna in the reserve is typical for the entire Eurasian steppe zone, but with notable diff erences: an increased number of species associated with shrub vegetation and a reduced number of species adapted to aquatic and semi-aquatic vegetation.