Trilacuna qingliangfeng Ma & Tong 2024, sp. nov.
Year: 2024
Type: other
Abstract: Trilacuna qingliangfeng Ma & Tong sp. nov. Figs 3, 4, 5, 6 A, B, D Material examined. Holotype: China • ♂ (SYNU-1181); Anhui Province, Xuancheng City, Jixi County, Qingliangfeng National Nature Reserve, Zhanlingwan; 30°5'53"N, 118°51'59"E; 8. VI. 2014; F. Zhang leg. Paratypes: China • 2 ♂ 8 ♀ (SYNU-1182 –1191); same data as holotype • 4 ♂ 6 ♀ (SYNU-1207 –1216); same data as holotype; 28. VIII. 2014 • 1 ♂ 8 ♀ (SYNU-1217 –1225); Qingliangfeng National Nature Reserve, Lantianao; 30°8'2"N, 118°49'42"E; 29. V. 2014; F. Zhang leg. • 1 ♀ (SYNU-1227); Qingliangfeng National Nature Reserve, Yezhutan; 30°7'10"N, 118°51'10"E; 30. V. 2014; F. Zhang leg. • 1 ♂ 9 ♀ (SYNU-1228 –1237); Qingliangfeng National Nature Reserve, Fuling Town, Yonglai Village; 30°9'8"N, 118°51'3"E; 5. VI. 2013; Cha and Zhang leg. • 1 ♂ 4 ♀ (SYNU-1202 –1206); Qingliangfeng National Nature Reserve, Fuling Town, Yonglai Village; 30°9'8"N, 118°51'3"E; 3. VI. 2013; Cha and Zhang leg. • 2 ♂ 1 ♀ (SYNU-1240 –1242); Qingliangfeng National Nature Reserve, Fuling Town, Yonglai Village, Qingliangfeng Protection Station; 30°2'32"N, 118°50'27"E; 4. VI. 2013; Cha and Zhang leg. • 2 ♀ (SYNU-1238 –1239); Qingliangfeng National Nature Reserve, Fuling Town, Yonglai Village, Huihanggudao; 30°7'57"N, 118°48'17"E; 2. VII. 2013; Cha and Zhang leg. • 3 ♀ (SYNU-1199 –1201); Qingliangfeng National Nature Reserve, Shexian County, Zhupu; 29°50'51"N, 118°25'49"E; 6. VI. 2013; Cha and Zhang leg. Other materials. China • 1 ♂ 3 ♀ (SYNU-536); Anhui Province, Huangshan City, Xiuning County, Qiyun Mountain; 29°48'23"N, 118°2'24"E; 19. IV. 2011; Zongxu Li and Luyu Wang leg. • 1 ♂ 1 ♀ (SYNU-537); same data as above • 2 ♀ (SYNU-538); same data as above • 1 ♀ (SYNU-1226); Anhui Province, Xiuning County, Lingnan Town, Dawu; 29°25'22"N, 118°8'12"E; 4. VI. 2014; F. Zhang leg. • 7 ♀ (SYNU-1192 –1198); Zhejiang Province, Tianmushan Mountain, Chanyuan Temple; 30°13'50"N, 119°26'55"E; 10. VI. 2014; F. Zhang leg. • 1 ♂ (SYNU-1243); Zhejiang, Tianmushan Mountain, Qianmutian; 30°23'30"N, 119°26'54"E; 10. VI. 2014; F. Zhang leg. Etymology. The specific name is a noun in apposition taken from the type locality. Diagnosis. The new species is similar to Trilacuna wenfeng Tong & Li, 2021, but can be distinguished by the slightly elevated epigastric region and a group of strong setae behind the level between posterior spiracles (Fig. 3 C, H) vs strongly elevated, with a cluster of densely short setae in front of the level between posterior spiracles (Wang et al. 2021: fig. 6 E, G, H), by the ridges on central area of sternum (Fig. 3 E) vs lacking (Wang et al. 2021: fig. 6 D), and by the small globular structure of endogyne (Fig. 6 B) vs spiral-shaped (Wang et al. 2021: fig. 5 D). Description. Male (Holotype). Body: yellow, legs lighter; habitus as in Fig. 3 A – C; body length 1.63. Carapace: 0.78 long, 0.63 wide; sides granulate, lateral margin rebordered (Fig. 3 D). Eyes: nearly equal sized; posterior eye row recurved from above, procurved from front; ALE separated from edge of carapace by 1.3 diameters (Fig. 3 D, G). Mouthparts: chelicerae straight; labium rectangular, anterior margin deeply incised; endites slender, distally branched (Figs 3 E, 6 D). Sternum: surface finely smooth, with several ridges on central area (Fig. 3 E). Abdomen: 0.91 long, 0.57 wide; booklung covers ovoid, surface smooth; sperm pore situated at level of anterior spiracles; apodemes present, posterior spiracles not connected by groove; epigastric region slightly elevated, with a group of strong setae (Fig. 3 C, H). Leg spination: legs I-II: tibia: v 2-2 - 2 - 2 - 0, metatarsus: v 2-2 - 0. Palp: orange; 0.55 long (0.18, 0.11, 0.10, 0.16); femur elongated (width / length = 0.57); bulb kidney-shaped, basally strongly bulged; embolus system with ear-shaped projection (bep) at base, with a lateral curved branch (lcb) and narrow medial branch (mb) (Fig. 4 A – L). Female (paratype, SYNU-1184). As in male except as noted. Body: habitus as in Fig. 5 A – C; body length 1.98. Carapace: 0.82 long, 0.66 wide. Mouthparts: endites unmodified. Sternum: without ridges on central area (Fig. 5 E). Abdomen: 1.24 long, 0.71 wide. Epigastric area: with recurved, strongly sclerotized arches (sar) (Figs 5 H, 6 A). Endogyne: with narrow, transversally elongated sclerite (tsc); with an anterior T-shaped sclerite (as) and a posterior small globular structure (glo) (Fig. 6 B). Distribution. Known only from the type locality (Fig. 11).
Authors: Ma, Jimeng, Chen, Qiang, Tong, Yanfeng
Institution: Shenyang Normal University
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W6893079531
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