New Sierola Cameron, 1881 (Hymenoptera: Bethylidae) from Norfolk and Phillip Islands

Abstract The flat wasp genus Sierola Cameron, 1881 is reviewed from Norfolk and Phillip Islands for the first time. Six new species are described: S. bounites sp. nov. , S. dysmica sp. nov. , S. idae sp. nov. , S. incomitata sp. nov. , S. longisetae sp. nov. , and S. phillipensis sp. nov. The fauna is surprisingly large for such small islands, but consistent with high diversity of the genus found elsewhere in the Pacific. The low collecting effort and small number of specimens for most of the species suggests that more remain to be found.