The Korean species of the genus Latibulus Gistel (Hymenoptera: Ichneumonidae) are reviewed. Two new species and a key to nine species are presented: Latibulus argiolus (Rossi), Latibulus bilacunitus Sheng and Xu, Latibulus flavopetiolus Oh and Lee new species, Latibulus fulvus Oh and Lee new species, Latibulus hokkaidensis Lee and Oh, Latibulus lautus (Tosquinet), Latibulus liaoningensis Sheng et al., Latibulus nigrinotum (Uchida), and Latibulus orientalis Horstmann. The genus is reported from Mongolia for the first time, based on the cocoon of an unidentified species. Polistes chinensis antennalis Pérez and Polistes jadwigae jadwigae Dalla Torre (Hymenoptera: Vespidae) are reported as new host species for the genus and L. nigrinotum, respectively.