The grasshopper Eremippus simplex (Eversmann) (Orthoptera, Acrididae) in South Siberia: Rediscovery of a rare species

The general distribution of the grasshopper Eremippus simplex (Eversmann, 1859) is described. Its taxonomic position and ecological peculiarities are characterized. It is one of the most widespread representatives of the genus and is the only species crossing the 52nd parallel in the north direction. The species is associated with dry steppes, semi-deserts and northern deserts and prefers habitats with dominance of different low sagebrushes (Artemisia spp.) and salinized soils. In the southern parts of Siberia and in the south-eastern parts of European Russia, its populations were and are very rare and insular. The MaxEnt models generated for the contemporary period and for 2021–2040 and 2041–2060 according the Shared Socioeconomic Pathway 3-7.0 and the global climate model CNRM-ESM2-1 provide an opportunity to evaluate the suitability of conditions for the species and show that, in the future, the general character of its distribution may change quite slightly, but its populations may become more prosperous in the future.