What question did this study set out to answer?

The aim is to describe and provide biological data for three new species of Trigonalyidae from South Korea.

April 12, 2026Open Access

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

Key Points

The aim is to describe and provide biological data for three new species of Trigonalyidae from South Korea.
Collection of specimens from South Korea.
Illustration and description of new species.
Discussion of biological data based on collection and rearing records.
Three new species identified: Jezonogonalos koreana, Lycogaster clauseni, and Orthogonalys inornata.
Lycogaster clauseni confirmed as a regular parasitoid of Eumeninae larvae.

Abstract

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.

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