A new monobasic leafhopper genus and species of the tribe Agalliini (Hemiptera: Auchenorrhyncha, Cicadellidae: Megophthalminae), Multinervis guangxiensis Li and Li, new genus and new species, is described and illustrated from Guangxi in Southern China. Multinervis appears to be closely related to three Southeast Asian genera, Dryodurgades Zakhvatkin 1946, Paulagallia Viraktamath, 2011 in reticular venation on forewings and Sangeeta Viraktamath, 2011 in upper striations at face, but can be distinguished mainly by the unique characters of the male genitalia and the structure of external morphology.