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Delphacodes
delphacid planthoppers
Delphacodes is a large genus of delphacid planthoppers comprising over 230 described species with worldwide distribution. Species in this genus are phloem-feeding herbivores primarily associated with grasses and cereal crops. Several species are economically significant as vectors of plant viruses affecting maize, wheat, and other gramineae, including Mal de Río Cuarto virus and maize rough dwarf virus. The genus exhibits wing dimorphism, with both brachypterous (short-winged) and macropterous (long-winged) forms occurring within populations.