Previously Neoidiotypa was a monotypic genus represented by a peculiar wasp-like richardiid from Cuba - N. appendiculata (Loew). In this work, five new species are described in this genus: N. mexicana sp. nov. from Mexico; N. alamagna sp. nov., N. flaviatra sp. nov., N. nigra sp. nov. and N. sticta sp. nov. from Costa Rica. New diagnostic characters for the genus are included. An identification key and illustrations for all species are provided.