A new genus of primitive Nepticulidae (Lepidoptera) from eastern Australia, with a revised diagnosis of nepticulid subfamilies

Roscidotoga, a new genus of Nepticulidae, is described. Three new species– R. callicomae, R. eucryphiae and R. sapphiripes –are described, all from rainforest in eastern Australia. Adults, genitalia, larvae, pupal exuviae and mines are illustrated. The larvae are leaf-miners on the Gondwanan plant families Cunoniaceae, Eucryphiaceae and Elaeocarpaceae. The systematic position of the genus is discussed: it is assigned to the subfamily Pectinivalvinae and considered to represent the sister-group of Pectinivalva Scoble, which likewise appears to be endemic to Australia. A revised diagnosis of the two nepticulid subfamilies is presented.