Two new genera of mayflies from the Ethiopian and Oriental Regions (Ephemeroptera: Leptophlebiidae)*

Synopsis A new genus of Leptophlebiidae is established for four Ethiopian and Oriental species, hitherto referred to Hagenulus, and one new species from Tanganyika, the male, female and immature stages of which are described. A second new genus is erected for H. scotti on the basis of new nymphal and adult material from Mahe Island.