Walkeriella miraculosa gen. n. et sp. n. (Lepidoptera: Hepialoidea: Hepialidae) is based on two specimens collected from rainforest southwest of Puerto Maldonado, Tambopata, Madre de Dios department, southeastern Peru. The distinct genitalia and wing venation separate this taxon from other genera of Hepialidae although four derived characters states are shared in common with the cibyrine clade. The holotype male is deposited in the collection of the Museo de Historia Natural, Lima, Peru.