Very little is known about the African DELPHACIDAE, especially the tropical forms. For this reason it is worth recording the few species represented in a small collection made by Mr. J. C. Bridwell at Oloke-Meji, Ibadan, Nigeria, in 1914. All the specimens were swept from grasses and reeds. It isto be hoped that larger collections will soon be available and that those who work at them will examine and give figures or adequate descriptions of the genitalia, especially of the aedeagus. Owing to the wide distribution ofsome species and the great difference in colour of other species, and the paucity of good specific distinctions in the chroötic characters, it isalmost impossible to identify many species of the Delphacides group without making use of the phallic characters.