Immature stages of Australian Austrothaumalea Tonnoir and Niphta Theischinger (Diptera: Thaumaleidae)
The immature stages of Austrothaumalea denticulata Theischinger and Niphta collessi Theischinger are described. This is the first description of the immature stages of an Australian species of the former genus and the first description of the immature stages of Niphta Theischinger. Characters of the immature stages are compared among thaumaleid genera. The first case of parasitism upon immature stages of Thaumaleidae by Entomacis sp. (Hymenoptera: Proctotrupoidea: Diapriidae), is reported.