The Delphacidae are the most diverse and economically important family among the planthoppers (Fulgoroidea). The polyphyletic genus Delphacodes s.l. contains 132 species making it the largest delphacid genus in the New World. However, in the Old World, Delphacodes s.s. contains only ten valid species and is restricted to the western Palearctic region, thereby relegating all New World species to incertae sedis. This project seeks to place New World Delphacodes into proper monophyletic genera and create traditional and interactive means to accurately recognize and identify them. Some species currently in Delphacodes clearly belong in established genera, including Toya, Ribautodelphax, Syndelphax, and Euides. Other less certain affinities within Delphacodes require the revision of existing genera or the establishment of new ones. Based on published descriptions and available specimens, identified species groups include those near D. trimaculata, D. andromeda, D. campestris, D. lutulenta, and D. puella. Some of the remaining species may require the creation of monotypic genera, while others may remain relegated to incertae sedis as a result of unattainable or female type specimens. The features, species composition, and affinities of several species groups are discussed.