A morphology-based phylogeny of the Holarctic leafhopper genus Hamilton is reconstructed for the first time based on 39 discrete male adult morphological characters. The results support the monophyly of , with the included species forming two monophyletic lineages defined mainly by the number and location of aedeagus processes. The position of in the Aphrodini was resolved as follows: ( + ( + ( + ))). The fauna of from China, Japan and Korea are reviewed and six species are recognized, including two new species: (Linnaeus), (Signoret), (Matsumura), (Rey), sp. nov. (China: Sichuan) and sp. nov. (China: Hubei). Kato, 1933 syn. nov. and Kuoh, 1981 syn. nov. are considered junior synonyms of (Signoret, 1879). Choe, 1981 is a junior synonym of (Matsumura, 1912). A checklist and key to species of are provided.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10056908PMC
http://dx.doi.org/10.3390/insects14030291DOI Listing

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