This study was carried out to confirm the predatory and developmental features of N. stenoferus. We determine the host range of N. stenoferus. As a result, it was confirmed that Aphis gssypii, Myzus persicae, Planococcus citri, and Frankliniella occidentalis. N. stenoferus is thought to be able to feed on other micro pests. The test for a developmental period of N. stenoferus at 25℃ showed that the egg period was about 10 days. The nymphal period was about 18 days. Each nymphal period from 1st instar to 3rd instar nymphs was about 3 days. And the nymphal period of 4th and 5th were about 3.5 and 6 days, respectively. The female adult laid eggs in stem tissue or on leaves, and sometimes on the soaked cotton for water supply.

The family Nabidae (Hemiptera: Heteroptera: Cimicomorpha) is a cosmopolitan family of medium-sized (4-12 mm.) predatory groups in true bugs. Among them, 10 genera and approximately 130 species are distributed in the Palaearctic region. Most Nabidae 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. Most Nabinae are herbicolous and arboricolous, whereas all Prostemmatinae are ground-inhabiting (in litter layer, under stones, etc.). In this talk the family Nabidae is reviewed from Korea including two unrecorded species and one new species. The morphological information such as description and diagnoses, and biological information for each species are provided.

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.