dc:description"FIGURE 1. Male habitus of Lucanus species. A–B, L. jiaozishanus Qi, He, Su & Song, new species (33.3 mm, holotype, large sized, Kunming, Yunnan); C–D, L. ludivinae Boucher, 1998 (31.3 mm, medium sized, Gongshan, Yunnan); E–F, L. takeoi Adachi, 2020 (29.2 mm, small sized, Huidong, Sichuan); G–H, L. boileaui Planet, 1897 (41.9 mm, small sized, Mabian, Sichuan). A, C, E, G, dorsal view; B, D, F, H, ventral view. Scale bar = 10.0 mm.";
dc:description"FIGURE 2. Male head (A, G, M, S), clypeolabrum (B, H, N, T), canthus (C, I, O, U) and tibia (D–F, J–L, P–R, V–X) of Lucanus species in dorsal view. A–F, L. jiaozishanus Qi, He, Su & Song, new species (holotype, Kunming, Yunnan); G–L, L. ludivinae Boucher, 1998 (Gongshan, Yunnan); M–R, L. takeoi Adachi, 2020 (Huidong, Sichuan); S–X, L. boileaui Planet, 1897 (Mabian, Sichuan). Scale bar = 1.0 mm.";
dc:description"FIGURE 3. Male abdominal tergite 8 (A, E, I, M), abdominal ventrite 8 (B, F, J, N) and abdominal segment 9 (C–D, G–H, K–L, O–P) of Lucanus species. A–D, L. jiaozishanus Qi, He, Su & Song, new species (holotype, Kunming, Yunnan); E–H, L. ludivinae Boucher, 1998 (Gongshan, Yunnan); I–L, L. takeoi Adachi, 2020 (Huidong, Sichuan); M–P, L. boileaui Planet, 1897 (Mabian, Sichuan). A, D, E, H, I, L, M, P, dorsal view; B–C, F–G, J–K, N–O, ventral view. Scale bar = 1.0 mm.";
dc:description"FIGURE 6. Female head (A, G, I, O), clypeolabrum (B, J, P), canthus (C, H, K, Q) and tibia (D–F, L–N, R–T) of Lucanus species in dorsal view. A–F, L. jiaozishanus Qi, He, Su & Song, new species (paratype, Kunming, Yunnan); G–H (refer to p. 22 in Huang & Chen, 2017; Gongshan, Yunnan); I–N, L. takeoi Adachi, 2020 (Huidong, Sichuan); O–T, L. boileaui Planet, 1897 (Mabian, Sichuan). Scale bar = 1.0 mm.";
dc:description"FIGURE 5. Female habitus of Lucanus species. A–B, L. jiaozishanus Qi, He, Su & Song, new species (24.8 mm, paratype, Kunming, Yunnan); C–D, L. takeoi Adachi, 2020 (27.4 mm, Huidong, Sichuan); E–F, L. boileaui Planet, 1897 (35.0 mm, Mabian, Sichuan). A, C, E, dorsal view; B, D, F, ventral view. Scale bar = 10.0 mm.";
dc:description"FIGURE 14. Host plants of Lucanus species (L. takeoi Adachi, 2020, L. moae Qi, 2021, L. delavayi Fairmaire, 1887, L. thibetanus thibetanus Planet, 1898 and L. kraatzi kraatzi Nagel, 1926) at an altitude of about 2400 m in Huidong, Sichuan (Photo by local collector). A, C, Quercus spp. in the wild; B, D, details of Quercus spp. leaves (mating L. kraatzi kraatzi in red circle).";
