Chrysomelidae, Megalopodidae and Orsodacnidae (Coleoptera: Chrysomeloidea) of the Republic of Mordovia (Russia): dataset description

The known fauna of the Republic of Mordovia comprises 294 species of Chrysomeloidea from three families: Orsodacnidae (1), Megalopodidae (2) and Chrysomelidae (291). The checklist includes 35 species newly recorded for the region. For each species, the number of plots and specimens is provided. Ten species have been excluded from the region’s fauna. The species Bruchus occidentalis, Chrysomela lapponica, Phratora tibialis, Euluperus pinicola, Aphthona franzi, Phyllotreta astrachanica, Podagrica fuscicornis, Cryptocephalus planifrons, Cryptocephalus quadripustulatus, Cryptocephalus apicalis, and Syneta betulae occur in Mordovia near the boundaries of their distribution ranges. The leaf beetle Donacia malinovskyi, which is rare in European Russia, has been recorded. Leptinotarsa decemlineata is classified as an alien species, while Psylliodes hyoscyami, Chrysolina eurina, and Lilioceris lilii are regarded as cryptogenic species.