Aethodelphax alatus is a planthopper species in the family Delphacidae, originally described by Beamer in 1948 as Delphacodes alatus and later transferred to the new genus Aethodelphax. The species occurs in the midwestern and southeastern United States, where it is associated with native grassland habitats. Like other delphacid planthoppers, it likely feeds on grasses, though specific host associations remain undocumented in available sources.