Annotated checklist of the grasshoppers and crickets (Orthoptera) of the Czech Republic Author Holuša, Jaroslav Author Kočárek, Petr Author Vlk, Robert Author Marhoul, Pavel text Zootaxa 2013 3616 5 437 460 journal article 10.11646/zootaxa.3616.5.2 9ae2c7f6-3d52-4890-a601-bf744fe4a934 1175-5326 222524 6AF6D0DB-4B69-482D-A9A6-81D16663110A Locusta migratoria Linnaeus, 1758 Migrating swarms of this species were last observed in the territory of the CR at the beginning of the 19th century. During the 20th century, only several single individuals were recorded. It is possible, after an occurrence of a mass outbreak in Romania or Hungary , that a swarm could reach the CR. Under suitable conditions, an ephemeral population could possibly arise in southern Moravia or central Bohemia . At present, it is evaluated as regionally extinct (Holuša 2012).