Four genera of the subfamily Opiinae Blanchard (Hymenoptera, Braconidae) new for Japan, with the description of two new species.

Four genera are reported for the first time from Japan ( Areotetes van Achterberg & Li, 2013, Indiopius Fischer, 1966, Neopius Gahan, 1917 and Sternaulopius Fischer, 1965), and keys are provided for the species of these genera. Two new species are described and illustrated: Areotetesconvergens sp. nov. and Sternaulopiusmaculiferus sp. nov.