The subfamily Lycorininae Cushman & Rohwer, 1920 is a small group with a single genus, Lycorina. It is a cosmopolitan genus with 30 described species (Yu et al., 2012). In this genus, five species have been reported from the Eastern Palaearctic region, six species from China, two species from Japan. This subfamily is easily distinguished from other ichneumonid families based on tergites with a triangular area by deep impressions (Fig. 1G, I); pronotum with anterior margin reflexed; and hypopygium of female large triangular in lateral view (Fig. 2C). The focal host range appears to be weakly concealed larva of micro-lepidopteran species. Some species have been reared from Crambidae in leaf-rolls or webs (Doerksen and Neunzig, 1974; Finlayson, 1976) and Tortricidae (Chao, 1980; Shaw, 2004). In this study, we add three newly recorded species, Lycorina triangulifera Holmgren, L. spilonotae Chao, and L. ruficornis Kasparyan, to Korean ichneumonoids fauna and provide descriptions, a key to the Korean species, and photographs. Materials used in this work were collected by sweeping and Malaise trap, after which they were deposited in the animal systematic laboratory of the Yeungnam University (YNU, Gyeongsan, Korea). Specimens were examined by a AxioCam MRc5 camera attached to a stereo microscope (Zeiss SteREO Discovery. V20; Carl Zeiss, Göttingen, Germany), processed using AxioVision SE64 software (Carl Zeiss), and optimized with a Delta imaging system (i-solution; IMT i