''Diphyus iwatai'' is a

parasitoid wasp Parasitoid wasps are a large group of hymenopteran Superfamily (zoology), superfamilies, with all but the wood wasps (Orussoidea) being in the wasp-waisted Apocrita. As parasitoids, they lay their eggs on or in the bodies of other arthropods, ...

in the family

Ichneumonidae The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25 ...

. It was first described in 1955 by

Toichi Uchida Toichi Uchida (1898-1974) was a Japanese entomologist who described over 1000 new Ichneumonids and many new genera. He studied entomology under Professor Matsumura Matsutoshi at the Faculty of Agriculture of Hokkaido University , or , i ...

, as ''Amblyteles iwatai''. He described it from specimens found on Takadaisan (in Korea) and in Tamba (Japan). This wasp is found on the

Korean Peninsula Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically divided at or near the 38th parallel between North Korea (Dem ...

and in

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

References

{{taxonbar, from=Q2353324, knsl=yes Taxa named by Toichi Uchida Insects described in 1955 Fauna of South Korea Ichneumonidae Fauna of Japan