taxonID	type	description	language	source
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	vernacular_names	(Chinese common name: ṪNJDZẇm)	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	description	Figs. 1, 2, 4 A – C, 5, 6	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	materials_examined	Type material. Holotype, male (NJAU): CHINA: Hunan, Yongzhou City, Jiangyong County, Yuankou Provincial Nature Reserve, 1400 − 1600 m, VIII. 2025, Jian-Ping Rong leg. Paratypes (22 males and 12 females): CHINA: Hunan, Yongzhou City, Jiangyong County, Yuankou Provincial Nature Reserve, 1400 − 1600 m, 26. VII. 2025, Jian-Ping Rong leg. (15 males and 10 females in CRJP; 5 males and 2 females in CZZH; 1 male in CWYF; 1 male in CHYZ).	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	description	Description. Body length 24.0 – 38.5 mm. Body glabrous, dark brown, and moderately lustrous. The dorsal teeth are located close to the apex of the mandibles, with a shallow gap between the median teeth and the sub-basal teeth. The head shape roughly in the form of an inverted trapezoid, with a large, prominent, and slightly blunt canthus. Holotype male (Fig. 1 A – C, 5). Head 2.4 times as broad as long, broadest at the pointed anterior angles; surface finely punctate. It gradually depressed in the triangular area bounded by the anterior angle and the posterior margin. Frontal margin shallowly and roundly emarginate in the medial part. Pointed anterior angles approximately 60 degrees. Clypeolabrum isosceles trapezoid, with a depression at the top. Canthus far exceeding the outer margin of the eye. Preocular margin and Postocular margin straight. Mandibles long, about 1.9 times as long as the head; outer margin bisinuate, slightly incurved at apex; apex bifurcated, with a well-developed dorsal tooth; ventral surface with serried median teeth, continuous from apex to basal 2 / 5, and with a shallow gap between median teeth and sub-basal teeth; three to four sub-basal teeth. Antennae (Fig. 4 A) with antennomeres 1 – 7 smooth; antennomere 7 sharply acuminate; antennomeres 8 – 10 lamellate and pubescent. Pronotum transverse, about 1.9 times wider than long, widest at lateral angles. Lateral margin smooth, almost straight before the lateral angle and distinctly concave after. Posterior margin slightly bisinuate. Surface smooth but finely punctate. Legs dark brown; protibia with five large teeth along the outer margin and serried denticles between the teeth; mesotibia with a distinct lateral spine and two terminal spines; metatibia with a tiny denticle on the lateral margin (indiscernible on holotype but distinct on other specimens); tarsi straight and claws strong. Elytra elongate, 1.5 times longer than wide; smooth and punctate. Abdominal tergite VIII (Fig. 5 A) with weakly developed lateral angles. Top of the posterior margin of sternite VIII (Fig. 5 B) has a short, flat edge. Ventral plate of the abdominal segment IX elongated, distally extended and constricted towards the base, of equal width from 2 / 3 point to the end (Fig. 5 C, D). Aedeagus 2.7 times longer than wide. Basal piece basally gradually constricted. Paramere rounded and incurved. Median lobe (Fig. 5 E, G) wide and long, about 3 / 4 of the length of paramere. Flagellum short, structured as one well-sclerotized band. Variability of male paratypes. In medium males (Fig. 2 B), mandibles shorter, with a single sub-basal tooth on each mandible; dorsal tooth small, ridged on the dorsal surface of mandible. In minor males (Fig. 2 C), mandible shorter than head length; dorsal tooth degraded and one to two sub-basal teeth on each mandible. Female (Figs 2 D – E, 6). Body length 19.0 – 22.0 mm. Body glabrous, dark brown, and moderately lustrous. Head 1.9 times as broad as long, broadest at eyes, surface punctate. Eyes slightly protruding beyond the preocular margin and significantly protruding beyond the postocular margin. Clypeolabrum isosceles trapezoid, with a depression at the top. Mandibles asymmetrical, with dorsal tooth close to the apex of each mandible. Left mandible with an inner tooth at the middle. Right mandible with a smaller inner tooth. Pronotum transverse, about 1.8 times wider than long, widest at lateral angles. Lateral margin smooth, almost straight before the lateral angle and distinctly concave after. Posterior margin slightly bisinuate. Surface smooth but finely punctate. Legs dark brown, with three to four large teeth and serried denticles along the outer margin of tibia; apex of tibia forked, with sharp branches apically. Elytra elongate, 1.5 times longer than wide; smooth and punctate. Abdominal tergite VIII with blunt lateral angles (Fig. 6 C). Anterior margin of sternite VIII convex medially (Fig. 6 B). Spermatheca drop-shaped, gradually sclerotized. Spermathecal duct short, about 1.5 times the length of the spermatheca (Fig. 6 A).	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	diagnosis	Differential diagnosis. This new species exhibit similar morphological features with Prismognathus katsurai but can be distinguished by the following characters: 1) in medium and major males, mandibular dorsal tooth relatively well-developed (Fig. 4 C), instead of short and small (Fig. 4 F); 2) the gap between median teeth and subbasal teeth shallower (Fig. 4 A), rather than distinct depression (Fig. 4 D); 3) in medium and major males, three to four sub-basal teeth (Fig. 4 A), rather than two sub-basal teeth (Fig. 4 D); 4) pointed anterior angle of the canthus significantly less sharp (Fig. 4 A); 5) relatively wide end of ventral plate of the abdominal segment IX (Fig. 5 D); 6) abdominal tergite VIII without a subtriangular hyaline gap present at middle of posterior margin (Fig. 5 A); 7) Top of posterior margin of sternite VIII has a short flat edge (Fig. 5 B) instead of a relatively longer one (Fig. 7 B); 8) larger median lobe (Fig. 5 E, G); 9) Basal piece basally gradually constricted (Fig. 5 E) rather than being strongly constricted at the base (Fig. 7 E). The new species might be also related to P. prossi Bartolozzi & Wan, 2006; however, it can be easily distinguished by 1) canthus shape: P. prossi consistently exhibits the obvious angle at the anterior canthus; 2) mandibular dorsal tooth: P. prossi consistently possesses shorter mandibular tooth (as long as head), and the dorsal tooth is not close to the apex of the mandible.	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	discussion	Remarks. This new species is sympatric with Prismognathus klapperichi Bomans, 1989 in Yuankou Provincial Nature Reserve, where both species occur at similar elevations (1400 – 1800 m). Despite overlapping in habitat, the two species are separated by temporal niche partitioning, with P. zhihongi Wang & Huang, sp. nov. adults emerging approximately two weeks earlier than P. klapperichi based on field observations. Additionally, P. zhihongi Wang & Huang, sp. nov. has been unofficially recorded from Guilin City in northern Guangxi, but this locality requires further verification.	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	distribution	Distribution. China (Hunan; possible Guangxi).	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD4708906FFFCFF22FC2D2F81BAFB.taxon	etymology	Etymology. This new species is named in honor of Mr. Zhi-Hong Zhan (Nanjing, China), who first recognized this interesting species and provided valuable assistance in its identification.	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD470890EFFFDFF22FF4C2EF4BF27.taxon	vernacular_names	(Chinese common name: IJKDZ ẇm)	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD470890EFFFDFF22FF4C2EF4BF27.taxon	description	Figs 3, 4 D – F, 7	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD470890EFFFDFF22FF4C2EF4BF27.taxon	materials_examined	Material examined. 2 males (CZZH): VIETNAM: Ha Giang, VIII. 2023, Dang Ngoc Van leg.	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD470890EFFFDFF22FF4C2EF4BF27.taxon	discussion	Remarks. The major male (Figs 3, 4 D – F, 7) of this species is morphologically similar to Prismognathus zhihongi Wang & Huang, sp. nov. by long and upward-curving mandible, serried median teeth continuous from apex to basal 2 / 5; salient pointed anterior angle of the canthus. For the differences, see the diagnosis of P. zhihongi Wang & Huang, sp. nov. provided above.	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
03ABD470890EFFFDFF22FF4C2EF4BF27.taxon	distribution	Distribution: Vietnam, China (Guangxi).	en	Wang, Yi-Fan, Huang, Yu-Zhou, Rong, Jian-Ping, Sun, Yi-Fan, Bian, Cheng-Zhi (2025): A new species of the stag beetle genus Prismognathus Motschulsky, 1860 (Coleoptera: Lucanidae: Lucaninae) from China. Zootaxa 5737 (1): 127-136, DOI: 10.11646/zootaxa.5737.1.6, URL: https://doi.org/10.11646/zootaxa.5737.1.6
