dc:description"FIGURE 5. Antenna, female (A–G, I) and male (H, J–N).—A. T. apicalis, Minamichitose, Hokkaido; B, T. bicinctus, holotype; C, T. longicollis, Toyota, Aichi; D, T. fuscicornis, Inchon, Korea; E, T. nakanei, Ôginosen, Tottori; F, T. contractus, Okayamashi, Okayama; G, T. okinawensis, holotype; H. T. apicalis, Tsukuba, Ibaraki; I, T. katayamai, holotype; J, T. longicollis, Muroto, Kochi; K, T. fuscicornis, Shikotsu-ko, Hokkaido; L, T. nakanei, Noda, Chiba; M, T. contractus, Tatsuno, Hyogo; N, T. okinawensis, Amami-oshima, Kagoshima.";
dc:description"FIGURE 7. Wing, female.—A, T. apicalis, Kisofukushima, Nagano; B, T. bicinctus, holotype; C, T. bicinctus, Hôfu, Yamauchi; D, T. bicinctus, Fukuoka-shi, Fukuoka; E, T. longicollis, Okazaki, Aichi; F, T. longicollis, Osaka; G, H, T. katayamai, paratype; I, T. fuscicornis, Akigase, Saitama; J, T. fuscicornis, Kyoto.";
dc:description"FIGURE 10. Posterior part of abdomen, female.—A, T. apicalis, Tsukuba, Ibaraki; B, T. bicinctus, holotype; C, T. longicollis, Okazaki, Aichi; D, T. katayamai, holotype; E, F, T. fuscicornis Inchon, Korea; G, T. fuscicornis, Akigase, Saitama; H, T. nakanei, Ai, Shimane; I, T. nakanei, holotype of T. kaedei; J, T. contractus, Okayama-shi, Okayama; K, T. okinawensis, holotype; L, T. okinawensis, holotype of T. kurokivorus.";
dc:description"FIGURE 2. Tremex spp., female, with parts of measurements (white lines in A, B, D–F) and the names of cells in forewing (C).—A, D, T. longicollis, Okazaki, Aichi; B, F, T. fuscicornis, Inchon, Korea; C, T. nakanei, Tokyo; E, T. katayamai, holotype. OOCL: ocellar-occipital (carina) line. MPL: median length of pronotum seen from above.";
dc:description"FIGURE 3. Head, thorax and base of abdomen, female.—A, T. apicalis, Tsukuba, Ibaraki; B, T. bicinctus, holotype; C, T. longicollis, Okazaki, Aichi; D, T. katayamai, holotype; E, T. fuscicornis, Schwedt, Germany, F, G, T. fuscicornis, Inchon, Korea; H, T. nakanei, Ai, Shimane; I, T. nakanei, holotype of T. kaedei; J, T. contractus, Okayama-shi, Okayama; K, T. okinawensis, holotype; L, T. okinawensis, holotype of T. kurokivorus.";
dc:description"FIGURE 6. Hind leg, female.—A, T. longicollis, Tsushima, Nagasaki; B, T. katayamai, holotype; C, T. fuscicornis, Inchon, Korea; D, T. nakanei, holotype of T. kaedei; E, T. contractus, Okayama-shi, Okayama; F, T. okinawensis, Aha, Okinawa.";
dc:description"FIGURE 11. Posterior part of abdomen, female.—A, T. bicinctus, holotype; B, T. longicollis, Okazaki, Aichi; C, T. katayamai, holotype; D, T. fuscicornis, Inchon, Korea; E, T. contractus, Okayama-shi, Okayama; F, T. okinawensis, holotype.";
dc:description"FIGURE 1. Tremex spp., adult.—A, T. apicalis, eleven individuals, mostly males, staying on trunk of Lithocarpus edulis (Fagaceae), Tsukuba, Ibaraki prefecture, May 11, 2020; B, T. apicalis, female, ovipositing on trunk of Acer buergerianum (Sapindaceae), Tsukuba, Ibaraki prefecture, May 10, 2021; C, T. apicalis, male, one of the individuals shown in A; D, T. katayamai, holotype, ovipositing on trunk of Carpinus laxiflora (Betulaceae), Utsunomiya, Tochigi prefecture, June 26, 2021; E, T. contractus, ovipositing on trunk of an unidentified tree (probably Quercus serrata (Fagaceae)), Okayama, Okayama prefecture, April 30, 2021. Photographed by A. Shinohara (A–C), T. Kurihara (D) and H. Takeda (E).";
dc:description"FIGURE 8. Wing, female.—A, T. nakanei, holotype of T. kaedei; B, T. nakanei, Tokyo; C, T. nakanei, Suzuka, Mie; D, T. nakanei, Narukawa-keikoku, Ehime; E, F, T.contractus, Okayama-shi, Okayama; G, T. okinawensis, holotype; H, T.okinawensis, Ginama, Okinawa; I, T. okinawensis, holotype of T. kurokivorus (left wings, ventral view); J, T. okinawensis, Aha, Okinawa.";
dc:description"FIGURE 12. Abdomen, male.—A, F, T. nakanei, Noda, Chiba; B, G, T. contractus, Tatsuno, Hyogo; C, T. apicalis, Tsukuba, Ibaraki; D, T. fuscicornis, Chitose, Hokkaido; E, T. longicollis, Muroto, Kochi; H, T. okinawensis, Amami-ôshima, Kagoshima.";
dc:description"FIGURE 4. Head, thorax and base of abdomen, male.—A, B, T. apicalis, Minamichitose, Hokkaido; C, D, T. fuscicornis, Shikotsu-ko, Hokkaido; E, T. longicollis, Muroto, Kochi; F, T. nakanei, Noda, Chiba; G, T. contractus, Okayama-shi, Okayama; H, T. okinawensis, Amami-oshima, Kagoshima.";
dc:description"FIGURE 9. Wing, male.—A, T. apicalis, Tsukuba, Ibaraki; B, T. longicollis, Muroto, Kochi; C, T. fuscicornis, Chitose, Hokkaido; D, T. nakanei, Noda, Chiba; E, T. contractus, Tatsuno, Hyogo; F, T. okinawensis, Amami-ôshima, Kagoshima.";