Taxonomic and Zoogeographic Notes on Japanese Orthocentrinae (Hymenoptera, Ichneumonidae), with Descriptions of Four New Species Author Watanabe, Kyohei Kanagawa Prefectural Museum of Natural History, 499 Iryuda, Odawara, Kanagawa 250 – 0031, Japan watanabe-k@nh·kanagawa-museum·jp text Bulletin of the Kanagawa Prefectural Museum (Natural Science) 2023 2023-03-28 52 7 44 journal article 296841 10.5281/zenodo.11283244 b9f71976-9af1-46a9-ab31-a2e72a353865 2189-6720 11283244 3EF5E302-218F-4AED98C3-726441EE48DB Genus Apoclima Förster, 1869 Apoclima Förster, 1869: 171 . Type species: Apoclima signaticorne Förster, 1881 . Designated by Förster (1871) . In this study, I newly record this genus from Japan based on two new species, Apo. brevicauda sp. nov. and Apo. longicauda sp. nov. , from Japan . Eastern Palearctic species can be distinguished by the following key. Key to species of Apoclima recorded from Eastern Palaearctic region (Male of Apo. longicauda sp. nov. are unknown) 1.Female .............................................................2 -. Male ............................................................4 2. Ovipositor short, its sheath 0.7–0.85 times as long as hind tibia. T II 0.55–0.6 times as long as maximum width. ......................... Apo. brevicauda sp. nov. -. Ovipositor long, its sheath more than 0.95 times as long as hind tibia. T II more than 0.7 times as long as maximum width................................................................3 3. Ovipositor sheath 1.25–1.3 times as long as hind tibia ............................... Apo. longicauda sp. nov. -. Ovipositor sheath 1.0 times as long as hind tibia ........................................ Apo. signaticorne Förster, 1881 and Apo. rossicum Humala, 2007 4. Notch of FL III weak, with an obtuse tooth. FL I 5.0– 5.5 times as long as maximum depth in lateral view ............................ Apo. rossicum Humala, 2007 -. Notch of FL III strong, with sharply projecting tooth ( Figs. 4E , 5 F ). FL I shorter than 4.2 times as long as maximum depth in lateral view .............................................................. 5 5. Tooth of FL III with two short setae, its shorter than the height of tooth ( Fig. 22F ). Flagellum with 18–19 segments ...................................... Apo. brevicauda sp. nov. -. Tooth of FL III with two long setae, its longer than the height of tooth. Flagellum with 21 segments .......................... Apo. signaticorne Förster, 1881