New species and new records of the genus Homotropus Förster, 1869 (Hymenoptera, Ichneumonidae, Diplazontinae) from China

Two new species of the genus Homotropus Förster, 1869 (Hymenoptera, Ichneumonidae, Diplazontinae) from China are described: H. exilis Han, sp. nov. and H. immaculatus Han, sp. nov. In addition, H. areolaris (Uchida, 1957), H. collinus (Stelfox, 1941), and H. frontorius (Thunberg, 1822) are reported from China for the first time. A key to all species from China is provided.