The members of Euoplothrips are probably all kleptoparasites on various gall-inducing thrips. A new species of the genus, E. platypodae, is described from Gynaikothrips leaf galls on Ficus platypoda in Western Australia. Three different species from Tonga, Samoa and the Solomon Islands are each known from leaf galls on Ficus. In contrast, the eastern Australian species E. bagnalli is recorded from the leaf galls of other thrips on Smilax australis and Alyxia spicata. E. armatus Moulton from Papua New Guinea is included as a further synonym of E. bagnalli. A key is provided to distinguish these five species. E. malabarica is also included although it is known only from the original description and is probably not congeneric.