Two species of Elasmus japonicus Ashmead and Elasmus polistis Burks (Hymenoptera: Eulophidae) reared from nests of Polistes (Hymenoptera: Vespidae) in Korea

Two species of Elasmus (Hymenoptera: Eulophidae) are newly recognized in South Korea: Elasmus japonicus Ashmead and Elasmus polistis Burks. They were reared from the nests of Polistes (Hymenoptera: Vespidae): E. japonicus from Polistes rothneyi koreanus and E. polistis from Polistes snelleni and P. rothneyi koreanus. Both species are biparental and usually have more females than males.