Descriptions and biological data on three new species of Trigonalyidae (Hymenoptera: Trigonalyoidea) from South Korea

Three new species of Trigonalyidae, belonging to three genera, are described and illustrated from South Korea: Jezonogonalos koreana sp. nov., Lycogaster clauseni sp. nov., and Orthogonalys inornata sp. nov. We discuss their possible biology based on collection data, and for Lycogaster clauseni on rearing records. We confirm that Lycogaster clauseni is a regular parasitoid of Eumeninae larvae.