The genus Errastunus in the Nearctic region (Hemiptera, Cicadellidae, Deltocephalinae) Author Kits, Joel H. https://orcid.org/0000-0003-2685-0567 Canadian National Collection of Insects, Arachnids, and Nematodes, Agriculture and Agri-Food Canada, Ottawa, ON, Canada joel.kits@agr.gc.ca text ZooKeys 2023 2023-09-05 1178 143 164 http://dx.doi.org/10.3897/zookeys.1178.105566 journal article http://dx.doi.org/10.3897/zookeys.1178.105566 1313-2970-1178-143 4AEB506E484444F6A4A3EB23353F8BCE 9DED135A6864571095BBE42FD78B13DB Errastunus (Errastunus) Ribaut, 1946 Errastunus Ribaut, 1946: 83 (new genus). Adarrus (Errastunus) - Emeljanov 1966 (as subgenus). Latalus (Errastunus) - Hamilton 1983 (as subgenus). Errastunus (Errastunus) - Dmitriev 2001 (as subgenus). Type species. Cicada ocellaris Fallen , 1806 (by original designation). Diagnosis. Distinguished from other Paralimnini by the following combination of characters: male plates with multiple, uneven marginal rows of macrosetae, apices elongate and pointed; aedeagus symmetrical with dorso-apical gonopore and two pairs of subapical appendages; clavus with additional crossveins.