The subfamily Prostemmatinae (Hemiptera: Heteroptera: Cimicomorpha: Nabidae) is known as one of the predatory groups in true bugs, containing 5 genera and approximately 33 species in the Palaearctic region. All Prostemmatinae are ground-inhabiting (in litter layer, under stones, etc.), whereas most Nabinae are herbicolous and arboricolous. In Nabidae, most species are predators on various stages of insects (e.g., aphids, leafhoppers and lepidopteran eggs and young caterpillars), but several genera within the subfamily Prostemmatinae (e.g., Prostemma, Alloeorhynchus and Pagasa) are specialized predators of true bugs, especially of the family Lygaeidae. In this study the subfamily Prostemmatinae is revised from Korea. Among the four species recognized in this study, one species is a new record to Korean fauna, and Alloeorhynchus sp. nov. is described from the Chungcheongnam-do Province, South Korea. The morphological information such as description and diagnoses, and biological information for each species are provided.

• Hodan Lee(Laboratory of Systematic Entomology, Department of Applied Biology, College of Agriculture and life Sciences, Chungnam National University)
• Sunghoon Jung(Laboratory of Systematic Entomology, Department of Applied Biology, College of Agriculture and life Sciences, Chungnam National University)