Mymaridae, a moderately sized parasitic wasp family within Chalcidoidea, consists of 1,424 species in 103 genera worldwide. In East Asia, 75 species of 20 genera are recorded from China, 40 species of 15 genera Japan and 17 species of 8 genera South Korea.
Eubroncus in Mymaridae is newly recognized from South Korea with E. prodigiosus. Redescription and photographs of the diagnostic characters of E. prodigiosus are provided.

• Chang-Jun Kim(Division of Forest Biodiversity, Korea National Arboretum)
• Il-Kwon Kim(Division of Forest Biodiversity, Korea National Arboretum)
• Jongok Lim(Division of Forest Biodiversity, Korea National Arboretum)
• Jong-Wook Lee(Department of Life Sciences, Yeungnam University)